Hospital presentation and admission rates per patient one-year prior to SCU admission and one-year post SCU discharge.
| Variable . | Admission (all types) . | Medical Admission . | BPSD Admission . | ED Presentation (all types) . | |||||
|---|---|---|---|---|---|---|---|---|---|
| Subcategories . | Frequency . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . |
| . | n (%) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . |
| 1-year admission count | |||||||||
| Pre-admission year (ref) Post-discharge year | 174 (75) 55 (24) | 1.00 0.30 (0.22, 0.44)* | 1.001 0.32 (0.23, 0.43)* | 1.00 0.55 (0.37, 0.83)* | 1.002 0.55 (0.37, 0.83)* | 1.00 0.17 (0.11, 0.29)* | 1.001 0.17 (0.11, 0.28)* | 1.00 1.04 (0.75, 1.46) | 1.002 1.04 (0.75, 1.46) |
| Age (years) | |||||||||
| < 70 (ref) 70–74 75–79 80–84 85 + | 12 (14.1) 12 (14.1) 21 (24.7) 19 (22.4) 21 (24.7) | 1.00 1.41 (0.78, 2.56) 1.22 (0.71, 2.10) 1.00 (0.57, 1.76) 0.97 (0.55, 1.68) | 1.00 1.22 (0.68, 2.19) 1.44 (0.79, 2.64) 1.14 (0.60, 2.16) 1.06 (0.57, 1.97) | 1.00 1.22 (0.51, 2.94) 1.46 (0.68, 3.16) 1.68 (0.78, 3.62) 2.16 (1.04, 4.50) | 1.00 1.12 (0.38, 3.27) 1.34 (0.49, 3.64) 1.40 (0.48, 4.05) 1.98 (0.72, 5.47) | 1.00 1.50 (0.76, 2.98) 1.11 (0.59, 2.11) 0.69 (0.35, 1.40) 0.43 (0.20, 0.91)* | 1.00 1.16 (0.55, 2.43) 1.32 (0.58, 2.99) 0.74 (0.31, 1.78) 0.45 (0.19, 1.10) | 1.00 1.33 (0.72, 2.46) 0.98 (0.55, 1.76) 1.33 (0.76, 2.34) 0.89 (0.49, 1.61) | 1.00 1.14 (0.53, 2.44) 0.79 (0.37, 1.67) 0.46 (0.19, 1.12) 0.81 (0.36, 1.83) |
| Sex | |||||||||
| Male (ref) Female | 50 (58.8) 35 (41.2) | 1.00 0.90 (0.65, 1.26) | 1.00 0.97 (0.66, 1.66) | 1.00 0.76 (0.50, 1.14) | 1.00 0.72 (0.40, 1.30) | 1.00 1.04 (0.67, 1.60) | 1.00 0.97 (0.61, 1.53) | 1.00 1.15 (0.62, 1.61) | 1.00 1.55 (0.96, 2.50) |
| CCI score | |||||||||
| 1–4 (ref) 5–6 7 + | 23 (27.1) 43 (50.6) 19 (22.4) | 1.00 0.81 (0.55, 1.19) 1.33 (0.86, 2.04) | 1.00 1.15 (0.72, 1.83) 1.92 (1.14, 3.23)* | 1.00 0.85 (0.51, 1.41) 1.97 (1.18, 3.27) | 1.00 0.92 (0.39, 2.12) 1.98 (0.80, 4.89) | 1.00 0.78 (0.47, 1.29) 0.93 (0.57, 1.68) | 1.00 1.28 (0.71, 2.30) 1.66 (0.82, 3.38) | 1.00 1.38 (0.90, 2.12) 1.46 (0.89, 2.39) | 1.00 2.26 (1.16, 4.41)* 2.80 (1.27, 6.18)* |
| Diagnosis | |||||||||
| ad (ref) Other Mixed VaD | 29 (34.1 23 (27.1) 19 (22.4) 14 (16.5) | 1.00 1.10 (0.73, 1.65) 0.88 (0.56, 1.38) 0.96 (0.59, 1.56) | 1.00 1.26 (0.83, 1.92) 1.22 (0.76, 1.94) 1.05 (0.66, 1.66) | 1.00 1.10 (0.65, 1.85) 1.37 (0.82, 2.31) 1.24 (0.69, 2.23) | 1.00 1.90 (0.90, 3.99) 2.11 (1.02, 4.38) 1.62 (0.74, 3.57) | 1.00 1.10 (0.66, 1.84) 0.57 (0.31, 1.07) 0.78 (0.41, 1.48) | 1.00 1.11 (0.65, 1.90) 0.84 (0.44, 1.62) 0.75 (0.38, 1.45) | 1.00 1.74 (1.08, 2.80)* 2.58 (1.63, 4.08)* 1.50 (0.86, 2.63) | 1.00 2.59 (1.39, 4.82)* 3.84 (2.00, 7.37)* 1.37 (0.72, 2.64) |
| NPI Psychosis score | |||||||||
| ≤ 1 (ref) 2–4 5–6 7+ | 42 (24.7) 51 (30.0) 32 (18.8) 45 (26.5) | 1.00 0.86 (0.56, 1.33) 0.79 (0.48, 1.30) 0.89 (0.57, 1.39) | 1.00 0.97 (0.61, 1.54) 0.92 (0.49, 1.71) 1.07 (0.49, 2.34) | 1.00 0.57 (0.35, 0.93)* 0.61 (0.35, 1.06) 0.61 (0.23, 0.72)* | 1.00 0.54 (0.26, 1.12) 0.62 (0.23, 1.66) 0.61 (0.07, 1.46) | 1.00 1.34 (0.73, 2.44) 1.09 (0.55, 2.19) 1.67 (0.92, 3.04) | 1.00 1.43 (0.72, 2.83) 1.24 (0.51, 3.00) 0.89 (0.31, 2.56) | 1.00 1.15 (0.75, 1.78) 0.83 (0.48, 1.41) 0.88 (0.55, 1.42) | 1.00 1.84 (0.97, 3.48) 1.22 (0.51, 2.90) 3.37 (1.18, 9.65)* |
| NPI Hyperactivity score | |||||||||
| ≤ 1 (ref) 2–3 4–8 9+ | 44 (25.9) 41 (24.1) 47 (27.7) 38 (22.4) | 1,00 1.69 (1.06, 2.63)* 1.14 (0.72, 1.83) 1.47 (0.91, 2.35) | 1.00 1.60 (1.00, 2.56) 0.95 (0.51, 1.78) 0.82 (0.37, 1.85) | 1.00 1.87 (1.12, 3.12)* 0.77 (0.42, 1.42) 0.96 (0.52, 1.76) | 1.00 1.94 (0.95, 3.95) 0.72 (0.26, 2.00) 0.36 (0.09, 1.46) | 1.00 1.46 (0.77, 2.77) 1.53 (0.83, 2.84) 2.00 (1.07, 3.73) | 1.00 1.04 (0.52, 2.09) 0.78 (0.33, 1.86) 0.89 (0.31, 2.56) | 1.00 1.80 (1.15, 2.81)* 0.88 (0.53, 1.45) 1.01 (0.60, 1.69) | 1.00 2.17 (1.18, 3.99)* 0.54 (0.23, 1.28) 0.28 (0.09, 0.86)* |
| NPI Mood score | |||||||||
| ≤ 2 (ref) 3–4 5+ | 83 (48.8) 47 (27.7) 40 (23.5) | 1.00 0.83 (0.56, 1.23) 1.05 (0.70, 1.56) | 1.00 0.93 (0.59, 1.49) 1.86 (1.04, 3.31)* | 1.00 0.72 (0.42, 1.18) 0.96 (0.60, 1.54) | 1.00 0.70 (0.31, 1.58) 2.55 (0.89, 7.33) | 1.00 0.92 (0.55, 1.56) 1.12 (0.66, 1.90) | 1.00 0.95 (0.50, 1.78) 2.23 (1.04, 4.80)* | 1.00 1.17 (0.80, 1.70) 0.79 (0.50, 1.25) | 1.00 0.70 (0.37, 1.31) 1.42 (0.64, 3.14) |
| Variable . | Admission (all types) . | Medical Admission . | BPSD Admission . | ED Presentation (all types) . | |||||
|---|---|---|---|---|---|---|---|---|---|
| Subcategories . | Frequency . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . |
| . | n (%) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . |
| 1-year admission count | |||||||||
| Pre-admission year (ref) Post-discharge year | 174 (75) 55 (24) | 1.00 0.30 (0.22, 0.44)* | 1.001 0.32 (0.23, 0.43)* | 1.00 0.55 (0.37, 0.83)* | 1.002 0.55 (0.37, 0.83)* | 1.00 0.17 (0.11, 0.29)* | 1.001 0.17 (0.11, 0.28)* | 1.00 1.04 (0.75, 1.46) | 1.002 1.04 (0.75, 1.46) |
| Age (years) | |||||||||
| < 70 (ref) 70–74 75–79 80–84 85 + | 12 (14.1) 12 (14.1) 21 (24.7) 19 (22.4) 21 (24.7) | 1.00 1.41 (0.78, 2.56) 1.22 (0.71, 2.10) 1.00 (0.57, 1.76) 0.97 (0.55, 1.68) | 1.00 1.22 (0.68, 2.19) 1.44 (0.79, 2.64) 1.14 (0.60, 2.16) 1.06 (0.57, 1.97) | 1.00 1.22 (0.51, 2.94) 1.46 (0.68, 3.16) 1.68 (0.78, 3.62) 2.16 (1.04, 4.50) | 1.00 1.12 (0.38, 3.27) 1.34 (0.49, 3.64) 1.40 (0.48, 4.05) 1.98 (0.72, 5.47) | 1.00 1.50 (0.76, 2.98) 1.11 (0.59, 2.11) 0.69 (0.35, 1.40) 0.43 (0.20, 0.91)* | 1.00 1.16 (0.55, 2.43) 1.32 (0.58, 2.99) 0.74 (0.31, 1.78) 0.45 (0.19, 1.10) | 1.00 1.33 (0.72, 2.46) 0.98 (0.55, 1.76) 1.33 (0.76, 2.34) 0.89 (0.49, 1.61) | 1.00 1.14 (0.53, 2.44) 0.79 (0.37, 1.67) 0.46 (0.19, 1.12) 0.81 (0.36, 1.83) |
| Sex | |||||||||
| Male (ref) Female | 50 (58.8) 35 (41.2) | 1.00 0.90 (0.65, 1.26) | 1.00 0.97 (0.66, 1.66) | 1.00 0.76 (0.50, 1.14) | 1.00 0.72 (0.40, 1.30) | 1.00 1.04 (0.67, 1.60) | 1.00 0.97 (0.61, 1.53) | 1.00 1.15 (0.62, 1.61) | 1.00 1.55 (0.96, 2.50) |
| CCI score | |||||||||
| 1–4 (ref) 5–6 7 + | 23 (27.1) 43 (50.6) 19 (22.4) | 1.00 0.81 (0.55, 1.19) 1.33 (0.86, 2.04) | 1.00 1.15 (0.72, 1.83) 1.92 (1.14, 3.23)* | 1.00 0.85 (0.51, 1.41) 1.97 (1.18, 3.27) | 1.00 0.92 (0.39, 2.12) 1.98 (0.80, 4.89) | 1.00 0.78 (0.47, 1.29) 0.93 (0.57, 1.68) | 1.00 1.28 (0.71, 2.30) 1.66 (0.82, 3.38) | 1.00 1.38 (0.90, 2.12) 1.46 (0.89, 2.39) | 1.00 2.26 (1.16, 4.41)* 2.80 (1.27, 6.18)* |
| Diagnosis | |||||||||
| ad (ref) Other Mixed VaD | 29 (34.1 23 (27.1) 19 (22.4) 14 (16.5) | 1.00 1.10 (0.73, 1.65) 0.88 (0.56, 1.38) 0.96 (0.59, 1.56) | 1.00 1.26 (0.83, 1.92) 1.22 (0.76, 1.94) 1.05 (0.66, 1.66) | 1.00 1.10 (0.65, 1.85) 1.37 (0.82, 2.31) 1.24 (0.69, 2.23) | 1.00 1.90 (0.90, 3.99) 2.11 (1.02, 4.38) 1.62 (0.74, 3.57) | 1.00 1.10 (0.66, 1.84) 0.57 (0.31, 1.07) 0.78 (0.41, 1.48) | 1.00 1.11 (0.65, 1.90) 0.84 (0.44, 1.62) 0.75 (0.38, 1.45) | 1.00 1.74 (1.08, 2.80)* 2.58 (1.63, 4.08)* 1.50 (0.86, 2.63) | 1.00 2.59 (1.39, 4.82)* 3.84 (2.00, 7.37)* 1.37 (0.72, 2.64) |
| NPI Psychosis score | |||||||||
| ≤ 1 (ref) 2–4 5–6 7+ | 42 (24.7) 51 (30.0) 32 (18.8) 45 (26.5) | 1.00 0.86 (0.56, 1.33) 0.79 (0.48, 1.30) 0.89 (0.57, 1.39) | 1.00 0.97 (0.61, 1.54) 0.92 (0.49, 1.71) 1.07 (0.49, 2.34) | 1.00 0.57 (0.35, 0.93)* 0.61 (0.35, 1.06) 0.61 (0.23, 0.72)* | 1.00 0.54 (0.26, 1.12) 0.62 (0.23, 1.66) 0.61 (0.07, 1.46) | 1.00 1.34 (0.73, 2.44) 1.09 (0.55, 2.19) 1.67 (0.92, 3.04) | 1.00 1.43 (0.72, 2.83) 1.24 (0.51, 3.00) 0.89 (0.31, 2.56) | 1.00 1.15 (0.75, 1.78) 0.83 (0.48, 1.41) 0.88 (0.55, 1.42) | 1.00 1.84 (0.97, 3.48) 1.22 (0.51, 2.90) 3.37 (1.18, 9.65)* |
| NPI Hyperactivity score | |||||||||
| ≤ 1 (ref) 2–3 4–8 9+ | 44 (25.9) 41 (24.1) 47 (27.7) 38 (22.4) | 1,00 1.69 (1.06, 2.63)* 1.14 (0.72, 1.83) 1.47 (0.91, 2.35) | 1.00 1.60 (1.00, 2.56) 0.95 (0.51, 1.78) 0.82 (0.37, 1.85) | 1.00 1.87 (1.12, 3.12)* 0.77 (0.42, 1.42) 0.96 (0.52, 1.76) | 1.00 1.94 (0.95, 3.95) 0.72 (0.26, 2.00) 0.36 (0.09, 1.46) | 1.00 1.46 (0.77, 2.77) 1.53 (0.83, 2.84) 2.00 (1.07, 3.73) | 1.00 1.04 (0.52, 2.09) 0.78 (0.33, 1.86) 0.89 (0.31, 2.56) | 1.00 1.80 (1.15, 2.81)* 0.88 (0.53, 1.45) 1.01 (0.60, 1.69) | 1.00 2.17 (1.18, 3.99)* 0.54 (0.23, 1.28) 0.28 (0.09, 0.86)* |
| NPI Mood score | |||||||||
| ≤ 2 (ref) 3–4 5+ | 83 (48.8) 47 (27.7) 40 (23.5) | 1.00 0.83 (0.56, 1.23) 1.05 (0.70, 1.56) | 1.00 0.93 (0.59, 1.49) 1.86 (1.04, 3.31)* | 1.00 0.72 (0.42, 1.18) 0.96 (0.60, 1.54) | 1.00 0.70 (0.31, 1.58) 2.55 (0.89, 7.33) | 1.00 0.92 (0.55, 1.56) 1.12 (0.66, 1.90) | 1.00 0.95 (0.50, 1.78) 2.23 (1.04, 4.80)* | 1.00 1.17 (0.80, 1.70) 0.79 (0.50, 1.25) | 1.00 0.70 (0.37, 1.31) 1.42 (0.64, 3.14) |
| Variable . | Admission (all types) . | Medical Admission . | BPSD Admission . | ED Presentation (all types) . | |||||
|---|---|---|---|---|---|---|---|---|---|
| Subcategories . | Frequency . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . |
| . | n (%) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . |
| NPI Frontal score | |||||||||
| 0 (ref) 0.1+ | 120 (70.6) 50 (29.4) | 1.00 0.98 (0.69, 1.41) | 1.00 0.91 (0.58, 1.43) | 1.00 1.27 (0.84, 1.92) | 1.00 1.80 (0.82, 3.94) | 1.00 0.78 (0.48, 1.27) | 1.00 0.70 (0.39, 1.42) | 1.00 1.08 (0.75, 1.54) | 1.00 1.42 (0.75, 2.70) |
| SCU LoS | |||||||||
| < 2 wk (ref) 2–4 wk 4 + wk | 31 (36.4) 19 (22.4) 35 (41.2) | 1.00 0.69 (0.43, 1.11) 1.25 (0.88, 1.78) | 1.00 0.87 (0.55, 1.39) 1.65 (1.06, 2.55) | 1.00 0.38 (0.66, 0.76)* 0.99 (0.66, 1.49) | 1.00 0.66 (0.29, 1.52) 1.37 (0.67, 2.79) | 1.00 1.06 (0.58, 1.93) 1.56 (0.96, 2.52) | 1.00 1.31 (0.71, 9.26) 1.97 (1.07, 3.63)* | 1.00 0.49 (0.27, 0.87)* 1.31 (0.92, 1.87) | 1.00 0.34 (0.17, 0.69)* 1.50 (0.86, 2.61) |
| Number of NPS | |||||||||
| 1–3 (ref) 4–5 6–7 8 + | 4 (4.7) 27 (25.3) 30 (35.3) 24 (28.2) | 1.00 1.20 (0,54, 2.69) 0.92 (0.41, 2.07) 1.12 (0.49, 2.53) | 1.00 1.51 (0.70, 3.27) 1.24 (0.58, 2.64) 1.62 (0.77, 3.43) | 1.00 0.91 (0.41, 2.02) 0.48 (0.21, 1.10) 0.62 (0.27, 1.43) | 1.00 1.65 (0.58, 4.68) 0.66 (0.23, 1.88) 1.48 (0.52, 4.24) | 1.00 1.88 (0.50, 7.01) 1.96 (0.53, 7.26) 2.28 (0.61, 8.51) | 1.00 2.31 (0.58, 9.26) 2.39 (0.61, 9.37) 2.25 (0.59, 8.54) | 1.00 1.10 (0.50, 2.42) 0.76 (0.34, 1.70) 0.95 (0.43, 2.13) | 1.00 2.55 (0.89, 7.30) 1.36 (0.50, 3.68) 1.51 (0.56, 4.09) |
| NN support | |||||||||
| No (ref) Yes | 23 (27.1) 62 (72.9) | 1.00 0.92 (0.64, 1.33) | 1.00 0.84 (0.55, 1.28) | 1.00 0.84 (0.56, 1.28) | 1.00 0.65 (0.34, 1.23) | 1.00 1.00 (0.62, 1.62) | 1.00 1.07 (0.59, 1.97) | 1.00 1.06 (0.73, 1.55) | 1.00 1.34 (0.74, 2.42) |
| Residence | |||||||||
| Home (ref) RACF MSU Other | 45 (52.9) 6 (7.1) 28 (32.9) 6 (7.1) | 1.00 1.02 (0.60, 1.73) 0.95 (0.62, 1.46) 1.90 (0.93, 1.89) | 1.00 0.87 (0.36, 2.11) 1.92 (1.21, 3.06)* 0.81 (0.40, 1.63) | 1.00 0.49 (0.18, 1.35) 0.90 (0.59, 1.36) 0.25 (0.06, 1.01) | 1.00 0.84 (0.21, 3.38) 1.61 (0.80, 3.23) 0.28 (0.06, 1.32) | 1.00 0.58 (0.19, 1.74) 1.89 (1.21, 2.93)* 1.30 (0.57, 2.98) | 1.00 1.21 (0.35, 4.14) 2.64 (1.37, 5.09)* 1.77 (0.73, 4.26) | 1.00 0.38 (0.14, 1.02) 1.00 (0.71, 1.43) 0.47 (0.19, 1.16) | 1.00 0.34 (0.10, 1.09) 0.97 (0.55, 1.74) 0.86 (0.31, 2.40) |
| Discharge destination | |||||||||
| Home (ref) RACF MSU Other | 16 (18.8) 15 (58.8) 50 (58.8) 4 (4.7) | 1.00 0.53 (0.24, 1.19) 1.35 (0.96, 1.90) 0.73 (0.36, 1.50) | 1.00 0.76 (0.41, 1.41) 0.62 (0.35, 1.07) 0.85 (0.37, 1.96) | 1.00 0.87 (0.33, 2.29) 0.93 (0.51, 1.69) 0.74 (0.45, 1.20) | 1.00 0.87 (0.21, 3.38) 1.61 (0.80, 2.24) 0.28 (0.59, 1.32) | 1.00 3.16 (1.30, 7.67) 1.12 (0.54, 2.33) 1.21 (0.68, 2.18) | 1.00 0.99 (0.41, 2.36) 0.67 (0.31, 1.42) 0.89 (0.31, 2.54) | 1.00 2.93 (1.35, 6.39)* 1.92 (1.02, 3.61)* 1.83 (1.06, 3.17)* | 1.00 2.06 (0.83, 5.14) 2.26 (1.01, 5.07)* 3.75 (1.17, 11.90)* |
| Variable . | Admission (all types) . | Medical Admission . | BPSD Admission . | ED Presentation (all types) . | |||||
|---|---|---|---|---|---|---|---|---|---|
| Subcategories . | Frequency . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . |
| . | n (%) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . |
| NPI Frontal score | |||||||||
| 0 (ref) 0.1+ | 120 (70.6) 50 (29.4) | 1.00 0.98 (0.69, 1.41) | 1.00 0.91 (0.58, 1.43) | 1.00 1.27 (0.84, 1.92) | 1.00 1.80 (0.82, 3.94) | 1.00 0.78 (0.48, 1.27) | 1.00 0.70 (0.39, 1.42) | 1.00 1.08 (0.75, 1.54) | 1.00 1.42 (0.75, 2.70) |
| SCU LoS | |||||||||
| < 2 wk (ref) 2–4 wk 4 + wk | 31 (36.4) 19 (22.4) 35 (41.2) | 1.00 0.69 (0.43, 1.11) 1.25 (0.88, 1.78) | 1.00 0.87 (0.55, 1.39) 1.65 (1.06, 2.55) | 1.00 0.38 (0.66, 0.76)* 0.99 (0.66, 1.49) | 1.00 0.66 (0.29, 1.52) 1.37 (0.67, 2.79) | 1.00 1.06 (0.58, 1.93) 1.56 (0.96, 2.52) | 1.00 1.31 (0.71, 9.26) 1.97 (1.07, 3.63)* | 1.00 0.49 (0.27, 0.87)* 1.31 (0.92, 1.87) | 1.00 0.34 (0.17, 0.69)* 1.50 (0.86, 2.61) |
| Number of NPS | |||||||||
| 1–3 (ref) 4–5 6–7 8 + | 4 (4.7) 27 (25.3) 30 (35.3) 24 (28.2) | 1.00 1.20 (0,54, 2.69) 0.92 (0.41, 2.07) 1.12 (0.49, 2.53) | 1.00 1.51 (0.70, 3.27) 1.24 (0.58, 2.64) 1.62 (0.77, 3.43) | 1.00 0.91 (0.41, 2.02) 0.48 (0.21, 1.10) 0.62 (0.27, 1.43) | 1.00 1.65 (0.58, 4.68) 0.66 (0.23, 1.88) 1.48 (0.52, 4.24) | 1.00 1.88 (0.50, 7.01) 1.96 (0.53, 7.26) 2.28 (0.61, 8.51) | 1.00 2.31 (0.58, 9.26) 2.39 (0.61, 9.37) 2.25 (0.59, 8.54) | 1.00 1.10 (0.50, 2.42) 0.76 (0.34, 1.70) 0.95 (0.43, 2.13) | 1.00 2.55 (0.89, 7.30) 1.36 (0.50, 3.68) 1.51 (0.56, 4.09) |
| NN support | |||||||||
| No (ref) Yes | 23 (27.1) 62 (72.9) | 1.00 0.92 (0.64, 1.33) | 1.00 0.84 (0.55, 1.28) | 1.00 0.84 (0.56, 1.28) | 1.00 0.65 (0.34, 1.23) | 1.00 1.00 (0.62, 1.62) | 1.00 1.07 (0.59, 1.97) | 1.00 1.06 (0.73, 1.55) | 1.00 1.34 (0.74, 2.42) |
| Residence | |||||||||
| Home (ref) RACF MSU Other | 45 (52.9) 6 (7.1) 28 (32.9) 6 (7.1) | 1.00 1.02 (0.60, 1.73) 0.95 (0.62, 1.46) 1.90 (0.93, 1.89) | 1.00 0.87 (0.36, 2.11) 1.92 (1.21, 3.06)* 0.81 (0.40, 1.63) | 1.00 0.49 (0.18, 1.35) 0.90 (0.59, 1.36) 0.25 (0.06, 1.01) | 1.00 0.84 (0.21, 3.38) 1.61 (0.80, 3.23) 0.28 (0.06, 1.32) | 1.00 0.58 (0.19, 1.74) 1.89 (1.21, 2.93)* 1.30 (0.57, 2.98) | 1.00 1.21 (0.35, 4.14) 2.64 (1.37, 5.09)* 1.77 (0.73, 4.26) | 1.00 0.38 (0.14, 1.02) 1.00 (0.71, 1.43) 0.47 (0.19, 1.16) | 1.00 0.34 (0.10, 1.09) 0.97 (0.55, 1.74) 0.86 (0.31, 2.40) |
| Discharge destination | |||||||||
| Home (ref) RACF MSU Other | 16 (18.8) 15 (58.8) 50 (58.8) 4 (4.7) | 1.00 0.53 (0.24, 1.19) 1.35 (0.96, 1.90) 0.73 (0.36, 1.50) | 1.00 0.76 (0.41, 1.41) 0.62 (0.35, 1.07) 0.85 (0.37, 1.96) | 1.00 0.87 (0.33, 2.29) 0.93 (0.51, 1.69) 0.74 (0.45, 1.20) | 1.00 0.87 (0.21, 3.38) 1.61 (0.80, 2.24) 0.28 (0.59, 1.32) | 1.00 3.16 (1.30, 7.67) 1.12 (0.54, 2.33) 1.21 (0.68, 2.18) | 1.00 0.99 (0.41, 2.36) 0.67 (0.31, 1.42) 0.89 (0.31, 2.54) | 1.00 2.93 (1.35, 6.39)* 1.92 (1.02, 3.61)* 1.83 (1.06, 3.17)* | 1.00 2.06 (0.83, 5.14) 2.26 (1.01, 5.07)* 3.75 (1.17, 11.90)* |
1Negative binomial regression (used for over-dispersed data); 2Poisson regression; *Statistical significance P < .05
Abbreviations: IRR—Incidence rate ratio; CI—Confidence interval; BPSD—Behaviours and Psychological Symptoms of Dementia; ED—Emergency Department; ref—reference variable; CCI—Charlson Co-morbidity Index; ad—Alzheimer’s Disease; Other—includes other dementia e.g. Dementia with Lewy Body; Parkinson’s Disease; Alcohol-related Dementia, undifferentiated; Mixed—includes dementia on background of mental health diagnosis, cognitive disability, past traumatic brain injury; VaD—Vascular Dementia; NPI—Neuropsychiatric Inventory; SCU—Special care Unit; LoS—Length of Stay; wk—week; NPS—Neuropsychiatric Symptoms; NN—Nurse Navigator; RACF—Residential Aged Care Facility; MSU—Memory Support Unit; other—includes Nation Disability Insurance Scheme Accommodation, hostels.
Hospital presentation and admission rates per patient one-year prior to SCU admission and one-year post SCU discharge.
| Variable . | Admission (all types) . | Medical Admission . | BPSD Admission . | ED Presentation (all types) . | |||||
|---|---|---|---|---|---|---|---|---|---|
| Subcategories . | Frequency . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . |
| . | n (%) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . |
| 1-year admission count | |||||||||
| Pre-admission year (ref) Post-discharge year | 174 (75) 55 (24) | 1.00 0.30 (0.22, 0.44)* | 1.001 0.32 (0.23, 0.43)* | 1.00 0.55 (0.37, 0.83)* | 1.002 0.55 (0.37, 0.83)* | 1.00 0.17 (0.11, 0.29)* | 1.001 0.17 (0.11, 0.28)* | 1.00 1.04 (0.75, 1.46) | 1.002 1.04 (0.75, 1.46) |
| Age (years) | |||||||||
| < 70 (ref) 70–74 75–79 80–84 85 + | 12 (14.1) 12 (14.1) 21 (24.7) 19 (22.4) 21 (24.7) | 1.00 1.41 (0.78, 2.56) 1.22 (0.71, 2.10) 1.00 (0.57, 1.76) 0.97 (0.55, 1.68) | 1.00 1.22 (0.68, 2.19) 1.44 (0.79, 2.64) 1.14 (0.60, 2.16) 1.06 (0.57, 1.97) | 1.00 1.22 (0.51, 2.94) 1.46 (0.68, 3.16) 1.68 (0.78, 3.62) 2.16 (1.04, 4.50) | 1.00 1.12 (0.38, 3.27) 1.34 (0.49, 3.64) 1.40 (0.48, 4.05) 1.98 (0.72, 5.47) | 1.00 1.50 (0.76, 2.98) 1.11 (0.59, 2.11) 0.69 (0.35, 1.40) 0.43 (0.20, 0.91)* | 1.00 1.16 (0.55, 2.43) 1.32 (0.58, 2.99) 0.74 (0.31, 1.78) 0.45 (0.19, 1.10) | 1.00 1.33 (0.72, 2.46) 0.98 (0.55, 1.76) 1.33 (0.76, 2.34) 0.89 (0.49, 1.61) | 1.00 1.14 (0.53, 2.44) 0.79 (0.37, 1.67) 0.46 (0.19, 1.12) 0.81 (0.36, 1.83) |
| Sex | |||||||||
| Male (ref) Female | 50 (58.8) 35 (41.2) | 1.00 0.90 (0.65, 1.26) | 1.00 0.97 (0.66, 1.66) | 1.00 0.76 (0.50, 1.14) | 1.00 0.72 (0.40, 1.30) | 1.00 1.04 (0.67, 1.60) | 1.00 0.97 (0.61, 1.53) | 1.00 1.15 (0.62, 1.61) | 1.00 1.55 (0.96, 2.50) |
| CCI score | |||||||||
| 1–4 (ref) 5–6 7 + | 23 (27.1) 43 (50.6) 19 (22.4) | 1.00 0.81 (0.55, 1.19) 1.33 (0.86, 2.04) | 1.00 1.15 (0.72, 1.83) 1.92 (1.14, 3.23)* | 1.00 0.85 (0.51, 1.41) 1.97 (1.18, 3.27) | 1.00 0.92 (0.39, 2.12) 1.98 (0.80, 4.89) | 1.00 0.78 (0.47, 1.29) 0.93 (0.57, 1.68) | 1.00 1.28 (0.71, 2.30) 1.66 (0.82, 3.38) | 1.00 1.38 (0.90, 2.12) 1.46 (0.89, 2.39) | 1.00 2.26 (1.16, 4.41)* 2.80 (1.27, 6.18)* |
| Diagnosis | |||||||||
| ad (ref) Other Mixed VaD | 29 (34.1 23 (27.1) 19 (22.4) 14 (16.5) | 1.00 1.10 (0.73, 1.65) 0.88 (0.56, 1.38) 0.96 (0.59, 1.56) | 1.00 1.26 (0.83, 1.92) 1.22 (0.76, 1.94) 1.05 (0.66, 1.66) | 1.00 1.10 (0.65, 1.85) 1.37 (0.82, 2.31) 1.24 (0.69, 2.23) | 1.00 1.90 (0.90, 3.99) 2.11 (1.02, 4.38) 1.62 (0.74, 3.57) | 1.00 1.10 (0.66, 1.84) 0.57 (0.31, 1.07) 0.78 (0.41, 1.48) | 1.00 1.11 (0.65, 1.90) 0.84 (0.44, 1.62) 0.75 (0.38, 1.45) | 1.00 1.74 (1.08, 2.80)* 2.58 (1.63, 4.08)* 1.50 (0.86, 2.63) | 1.00 2.59 (1.39, 4.82)* 3.84 (2.00, 7.37)* 1.37 (0.72, 2.64) |
| NPI Psychosis score | |||||||||
| ≤ 1 (ref) 2–4 5–6 7+ | 42 (24.7) 51 (30.0) 32 (18.8) 45 (26.5) | 1.00 0.86 (0.56, 1.33) 0.79 (0.48, 1.30) 0.89 (0.57, 1.39) | 1.00 0.97 (0.61, 1.54) 0.92 (0.49, 1.71) 1.07 (0.49, 2.34) | 1.00 0.57 (0.35, 0.93)* 0.61 (0.35, 1.06) 0.61 (0.23, 0.72)* | 1.00 0.54 (0.26, 1.12) 0.62 (0.23, 1.66) 0.61 (0.07, 1.46) | 1.00 1.34 (0.73, 2.44) 1.09 (0.55, 2.19) 1.67 (0.92, 3.04) | 1.00 1.43 (0.72, 2.83) 1.24 (0.51, 3.00) 0.89 (0.31, 2.56) | 1.00 1.15 (0.75, 1.78) 0.83 (0.48, 1.41) 0.88 (0.55, 1.42) | 1.00 1.84 (0.97, 3.48) 1.22 (0.51, 2.90) 3.37 (1.18, 9.65)* |
| NPI Hyperactivity score | |||||||||
| ≤ 1 (ref) 2–3 4–8 9+ | 44 (25.9) 41 (24.1) 47 (27.7) 38 (22.4) | 1,00 1.69 (1.06, 2.63)* 1.14 (0.72, 1.83) 1.47 (0.91, 2.35) | 1.00 1.60 (1.00, 2.56) 0.95 (0.51, 1.78) 0.82 (0.37, 1.85) | 1.00 1.87 (1.12, 3.12)* 0.77 (0.42, 1.42) 0.96 (0.52, 1.76) | 1.00 1.94 (0.95, 3.95) 0.72 (0.26, 2.00) 0.36 (0.09, 1.46) | 1.00 1.46 (0.77, 2.77) 1.53 (0.83, 2.84) 2.00 (1.07, 3.73) | 1.00 1.04 (0.52, 2.09) 0.78 (0.33, 1.86) 0.89 (0.31, 2.56) | 1.00 1.80 (1.15, 2.81)* 0.88 (0.53, 1.45) 1.01 (0.60, 1.69) | 1.00 2.17 (1.18, 3.99)* 0.54 (0.23, 1.28) 0.28 (0.09, 0.86)* |
| NPI Mood score | |||||||||
| ≤ 2 (ref) 3–4 5+ | 83 (48.8) 47 (27.7) 40 (23.5) | 1.00 0.83 (0.56, 1.23) 1.05 (0.70, 1.56) | 1.00 0.93 (0.59, 1.49) 1.86 (1.04, 3.31)* | 1.00 0.72 (0.42, 1.18) 0.96 (0.60, 1.54) | 1.00 0.70 (0.31, 1.58) 2.55 (0.89, 7.33) | 1.00 0.92 (0.55, 1.56) 1.12 (0.66, 1.90) | 1.00 0.95 (0.50, 1.78) 2.23 (1.04, 4.80)* | 1.00 1.17 (0.80, 1.70) 0.79 (0.50, 1.25) | 1.00 0.70 (0.37, 1.31) 1.42 (0.64, 3.14) |
| Variable . | Admission (all types) . | Medical Admission . | BPSD Admission . | ED Presentation (all types) . | |||||
|---|---|---|---|---|---|---|---|---|---|
| Subcategories . | Frequency . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . |
| . | n (%) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . |
| 1-year admission count | |||||||||
| Pre-admission year (ref) Post-discharge year | 174 (75) 55 (24) | 1.00 0.30 (0.22, 0.44)* | 1.001 0.32 (0.23, 0.43)* | 1.00 0.55 (0.37, 0.83)* | 1.002 0.55 (0.37, 0.83)* | 1.00 0.17 (0.11, 0.29)* | 1.001 0.17 (0.11, 0.28)* | 1.00 1.04 (0.75, 1.46) | 1.002 1.04 (0.75, 1.46) |
| Age (years) | |||||||||
| < 70 (ref) 70–74 75–79 80–84 85 + | 12 (14.1) 12 (14.1) 21 (24.7) 19 (22.4) 21 (24.7) | 1.00 1.41 (0.78, 2.56) 1.22 (0.71, 2.10) 1.00 (0.57, 1.76) 0.97 (0.55, 1.68) | 1.00 1.22 (0.68, 2.19) 1.44 (0.79, 2.64) 1.14 (0.60, 2.16) 1.06 (0.57, 1.97) | 1.00 1.22 (0.51, 2.94) 1.46 (0.68, 3.16) 1.68 (0.78, 3.62) 2.16 (1.04, 4.50) | 1.00 1.12 (0.38, 3.27) 1.34 (0.49, 3.64) 1.40 (0.48, 4.05) 1.98 (0.72, 5.47) | 1.00 1.50 (0.76, 2.98) 1.11 (0.59, 2.11) 0.69 (0.35, 1.40) 0.43 (0.20, 0.91)* | 1.00 1.16 (0.55, 2.43) 1.32 (0.58, 2.99) 0.74 (0.31, 1.78) 0.45 (0.19, 1.10) | 1.00 1.33 (0.72, 2.46) 0.98 (0.55, 1.76) 1.33 (0.76, 2.34) 0.89 (0.49, 1.61) | 1.00 1.14 (0.53, 2.44) 0.79 (0.37, 1.67) 0.46 (0.19, 1.12) 0.81 (0.36, 1.83) |
| Sex | |||||||||
| Male (ref) Female | 50 (58.8) 35 (41.2) | 1.00 0.90 (0.65, 1.26) | 1.00 0.97 (0.66, 1.66) | 1.00 0.76 (0.50, 1.14) | 1.00 0.72 (0.40, 1.30) | 1.00 1.04 (0.67, 1.60) | 1.00 0.97 (0.61, 1.53) | 1.00 1.15 (0.62, 1.61) | 1.00 1.55 (0.96, 2.50) |
| CCI score | |||||||||
| 1–4 (ref) 5–6 7 + | 23 (27.1) 43 (50.6) 19 (22.4) | 1.00 0.81 (0.55, 1.19) 1.33 (0.86, 2.04) | 1.00 1.15 (0.72, 1.83) 1.92 (1.14, 3.23)* | 1.00 0.85 (0.51, 1.41) 1.97 (1.18, 3.27) | 1.00 0.92 (0.39, 2.12) 1.98 (0.80, 4.89) | 1.00 0.78 (0.47, 1.29) 0.93 (0.57, 1.68) | 1.00 1.28 (0.71, 2.30) 1.66 (0.82, 3.38) | 1.00 1.38 (0.90, 2.12) 1.46 (0.89, 2.39) | 1.00 2.26 (1.16, 4.41)* 2.80 (1.27, 6.18)* |
| Diagnosis | |||||||||
| ad (ref) Other Mixed VaD | 29 (34.1 23 (27.1) 19 (22.4) 14 (16.5) | 1.00 1.10 (0.73, 1.65) 0.88 (0.56, 1.38) 0.96 (0.59, 1.56) | 1.00 1.26 (0.83, 1.92) 1.22 (0.76, 1.94) 1.05 (0.66, 1.66) | 1.00 1.10 (0.65, 1.85) 1.37 (0.82, 2.31) 1.24 (0.69, 2.23) | 1.00 1.90 (0.90, 3.99) 2.11 (1.02, 4.38) 1.62 (0.74, 3.57) | 1.00 1.10 (0.66, 1.84) 0.57 (0.31, 1.07) 0.78 (0.41, 1.48) | 1.00 1.11 (0.65, 1.90) 0.84 (0.44, 1.62) 0.75 (0.38, 1.45) | 1.00 1.74 (1.08, 2.80)* 2.58 (1.63, 4.08)* 1.50 (0.86, 2.63) | 1.00 2.59 (1.39, 4.82)* 3.84 (2.00, 7.37)* 1.37 (0.72, 2.64) |
| NPI Psychosis score | |||||||||
| ≤ 1 (ref) 2–4 5–6 7+ | 42 (24.7) 51 (30.0) 32 (18.8) 45 (26.5) | 1.00 0.86 (0.56, 1.33) 0.79 (0.48, 1.30) 0.89 (0.57, 1.39) | 1.00 0.97 (0.61, 1.54) 0.92 (0.49, 1.71) 1.07 (0.49, 2.34) | 1.00 0.57 (0.35, 0.93)* 0.61 (0.35, 1.06) 0.61 (0.23, 0.72)* | 1.00 0.54 (0.26, 1.12) 0.62 (0.23, 1.66) 0.61 (0.07, 1.46) | 1.00 1.34 (0.73, 2.44) 1.09 (0.55, 2.19) 1.67 (0.92, 3.04) | 1.00 1.43 (0.72, 2.83) 1.24 (0.51, 3.00) 0.89 (0.31, 2.56) | 1.00 1.15 (0.75, 1.78) 0.83 (0.48, 1.41) 0.88 (0.55, 1.42) | 1.00 1.84 (0.97, 3.48) 1.22 (0.51, 2.90) 3.37 (1.18, 9.65)* |
| NPI Hyperactivity score | |||||||||
| ≤ 1 (ref) 2–3 4–8 9+ | 44 (25.9) 41 (24.1) 47 (27.7) 38 (22.4) | 1,00 1.69 (1.06, 2.63)* 1.14 (0.72, 1.83) 1.47 (0.91, 2.35) | 1.00 1.60 (1.00, 2.56) 0.95 (0.51, 1.78) 0.82 (0.37, 1.85) | 1.00 1.87 (1.12, 3.12)* 0.77 (0.42, 1.42) 0.96 (0.52, 1.76) | 1.00 1.94 (0.95, 3.95) 0.72 (0.26, 2.00) 0.36 (0.09, 1.46) | 1.00 1.46 (0.77, 2.77) 1.53 (0.83, 2.84) 2.00 (1.07, 3.73) | 1.00 1.04 (0.52, 2.09) 0.78 (0.33, 1.86) 0.89 (0.31, 2.56) | 1.00 1.80 (1.15, 2.81)* 0.88 (0.53, 1.45) 1.01 (0.60, 1.69) | 1.00 2.17 (1.18, 3.99)* 0.54 (0.23, 1.28) 0.28 (0.09, 0.86)* |
| NPI Mood score | |||||||||
| ≤ 2 (ref) 3–4 5+ | 83 (48.8) 47 (27.7) 40 (23.5) | 1.00 0.83 (0.56, 1.23) 1.05 (0.70, 1.56) | 1.00 0.93 (0.59, 1.49) 1.86 (1.04, 3.31)* | 1.00 0.72 (0.42, 1.18) 0.96 (0.60, 1.54) | 1.00 0.70 (0.31, 1.58) 2.55 (0.89, 7.33) | 1.00 0.92 (0.55, 1.56) 1.12 (0.66, 1.90) | 1.00 0.95 (0.50, 1.78) 2.23 (1.04, 4.80)* | 1.00 1.17 (0.80, 1.70) 0.79 (0.50, 1.25) | 1.00 0.70 (0.37, 1.31) 1.42 (0.64, 3.14) |
| Variable . | Admission (all types) . | Medical Admission . | BPSD Admission . | ED Presentation (all types) . | |||||
|---|---|---|---|---|---|---|---|---|---|
| Subcategories . | Frequency . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . |
| . | n (%) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . |
| NPI Frontal score | |||||||||
| 0 (ref) 0.1+ | 120 (70.6) 50 (29.4) | 1.00 0.98 (0.69, 1.41) | 1.00 0.91 (0.58, 1.43) | 1.00 1.27 (0.84, 1.92) | 1.00 1.80 (0.82, 3.94) | 1.00 0.78 (0.48, 1.27) | 1.00 0.70 (0.39, 1.42) | 1.00 1.08 (0.75, 1.54) | 1.00 1.42 (0.75, 2.70) |
| SCU LoS | |||||||||
| < 2 wk (ref) 2–4 wk 4 + wk | 31 (36.4) 19 (22.4) 35 (41.2) | 1.00 0.69 (0.43, 1.11) 1.25 (0.88, 1.78) | 1.00 0.87 (0.55, 1.39) 1.65 (1.06, 2.55) | 1.00 0.38 (0.66, 0.76)* 0.99 (0.66, 1.49) | 1.00 0.66 (0.29, 1.52) 1.37 (0.67, 2.79) | 1.00 1.06 (0.58, 1.93) 1.56 (0.96, 2.52) | 1.00 1.31 (0.71, 9.26) 1.97 (1.07, 3.63)* | 1.00 0.49 (0.27, 0.87)* 1.31 (0.92, 1.87) | 1.00 0.34 (0.17, 0.69)* 1.50 (0.86, 2.61) |
| Number of NPS | |||||||||
| 1–3 (ref) 4–5 6–7 8 + | 4 (4.7) 27 (25.3) 30 (35.3) 24 (28.2) | 1.00 1.20 (0,54, 2.69) 0.92 (0.41, 2.07) 1.12 (0.49, 2.53) | 1.00 1.51 (0.70, 3.27) 1.24 (0.58, 2.64) 1.62 (0.77, 3.43) | 1.00 0.91 (0.41, 2.02) 0.48 (0.21, 1.10) 0.62 (0.27, 1.43) | 1.00 1.65 (0.58, 4.68) 0.66 (0.23, 1.88) 1.48 (0.52, 4.24) | 1.00 1.88 (0.50, 7.01) 1.96 (0.53, 7.26) 2.28 (0.61, 8.51) | 1.00 2.31 (0.58, 9.26) 2.39 (0.61, 9.37) 2.25 (0.59, 8.54) | 1.00 1.10 (0.50, 2.42) 0.76 (0.34, 1.70) 0.95 (0.43, 2.13) | 1.00 2.55 (0.89, 7.30) 1.36 (0.50, 3.68) 1.51 (0.56, 4.09) |
| NN support | |||||||||
| No (ref) Yes | 23 (27.1) 62 (72.9) | 1.00 0.92 (0.64, 1.33) | 1.00 0.84 (0.55, 1.28) | 1.00 0.84 (0.56, 1.28) | 1.00 0.65 (0.34, 1.23) | 1.00 1.00 (0.62, 1.62) | 1.00 1.07 (0.59, 1.97) | 1.00 1.06 (0.73, 1.55) | 1.00 1.34 (0.74, 2.42) |
| Residence | |||||||||
| Home (ref) RACF MSU Other | 45 (52.9) 6 (7.1) 28 (32.9) 6 (7.1) | 1.00 1.02 (0.60, 1.73) 0.95 (0.62, 1.46) 1.90 (0.93, 1.89) | 1.00 0.87 (0.36, 2.11) 1.92 (1.21, 3.06)* 0.81 (0.40, 1.63) | 1.00 0.49 (0.18, 1.35) 0.90 (0.59, 1.36) 0.25 (0.06, 1.01) | 1.00 0.84 (0.21, 3.38) 1.61 (0.80, 3.23) 0.28 (0.06, 1.32) | 1.00 0.58 (0.19, 1.74) 1.89 (1.21, 2.93)* 1.30 (0.57, 2.98) | 1.00 1.21 (0.35, 4.14) 2.64 (1.37, 5.09)* 1.77 (0.73, 4.26) | 1.00 0.38 (0.14, 1.02) 1.00 (0.71, 1.43) 0.47 (0.19, 1.16) | 1.00 0.34 (0.10, 1.09) 0.97 (0.55, 1.74) 0.86 (0.31, 2.40) |
| Discharge destination | |||||||||
| Home (ref) RACF MSU Other | 16 (18.8) 15 (58.8) 50 (58.8) 4 (4.7) | 1.00 0.53 (0.24, 1.19) 1.35 (0.96, 1.90) 0.73 (0.36, 1.50) | 1.00 0.76 (0.41, 1.41) 0.62 (0.35, 1.07) 0.85 (0.37, 1.96) | 1.00 0.87 (0.33, 2.29) 0.93 (0.51, 1.69) 0.74 (0.45, 1.20) | 1.00 0.87 (0.21, 3.38) 1.61 (0.80, 2.24) 0.28 (0.59, 1.32) | 1.00 3.16 (1.30, 7.67) 1.12 (0.54, 2.33) 1.21 (0.68, 2.18) | 1.00 0.99 (0.41, 2.36) 0.67 (0.31, 1.42) 0.89 (0.31, 2.54) | 1.00 2.93 (1.35, 6.39)* 1.92 (1.02, 3.61)* 1.83 (1.06, 3.17)* | 1.00 2.06 (0.83, 5.14) 2.26 (1.01, 5.07)* 3.75 (1.17, 11.90)* |
| Variable . | Admission (all types) . | Medical Admission . | BPSD Admission . | ED Presentation (all types) . | |||||
|---|---|---|---|---|---|---|---|---|---|
| Subcategories . | Frequency . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . | Unadjusted IRR . | Adjusted IRR . |
| . | n (%) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . | (95% CI) . |
| NPI Frontal score | |||||||||
| 0 (ref) 0.1+ | 120 (70.6) 50 (29.4) | 1.00 0.98 (0.69, 1.41) | 1.00 0.91 (0.58, 1.43) | 1.00 1.27 (0.84, 1.92) | 1.00 1.80 (0.82, 3.94) | 1.00 0.78 (0.48, 1.27) | 1.00 0.70 (0.39, 1.42) | 1.00 1.08 (0.75, 1.54) | 1.00 1.42 (0.75, 2.70) |
| SCU LoS | |||||||||
| < 2 wk (ref) 2–4 wk 4 + wk | 31 (36.4) 19 (22.4) 35 (41.2) | 1.00 0.69 (0.43, 1.11) 1.25 (0.88, 1.78) | 1.00 0.87 (0.55, 1.39) 1.65 (1.06, 2.55) | 1.00 0.38 (0.66, 0.76)* 0.99 (0.66, 1.49) | 1.00 0.66 (0.29, 1.52) 1.37 (0.67, 2.79) | 1.00 1.06 (0.58, 1.93) 1.56 (0.96, 2.52) | 1.00 1.31 (0.71, 9.26) 1.97 (1.07, 3.63)* | 1.00 0.49 (0.27, 0.87)* 1.31 (0.92, 1.87) | 1.00 0.34 (0.17, 0.69)* 1.50 (0.86, 2.61) |
| Number of NPS | |||||||||
| 1–3 (ref) 4–5 6–7 8 + | 4 (4.7) 27 (25.3) 30 (35.3) 24 (28.2) | 1.00 1.20 (0,54, 2.69) 0.92 (0.41, 2.07) 1.12 (0.49, 2.53) | 1.00 1.51 (0.70, 3.27) 1.24 (0.58, 2.64) 1.62 (0.77, 3.43) | 1.00 0.91 (0.41, 2.02) 0.48 (0.21, 1.10) 0.62 (0.27, 1.43) | 1.00 1.65 (0.58, 4.68) 0.66 (0.23, 1.88) 1.48 (0.52, 4.24) | 1.00 1.88 (0.50, 7.01) 1.96 (0.53, 7.26) 2.28 (0.61, 8.51) | 1.00 2.31 (0.58, 9.26) 2.39 (0.61, 9.37) 2.25 (0.59, 8.54) | 1.00 1.10 (0.50, 2.42) 0.76 (0.34, 1.70) 0.95 (0.43, 2.13) | 1.00 2.55 (0.89, 7.30) 1.36 (0.50, 3.68) 1.51 (0.56, 4.09) |
| NN support | |||||||||
| No (ref) Yes | 23 (27.1) 62 (72.9) | 1.00 0.92 (0.64, 1.33) | 1.00 0.84 (0.55, 1.28) | 1.00 0.84 (0.56, 1.28) | 1.00 0.65 (0.34, 1.23) | 1.00 1.00 (0.62, 1.62) | 1.00 1.07 (0.59, 1.97) | 1.00 1.06 (0.73, 1.55) | 1.00 1.34 (0.74, 2.42) |
| Residence | |||||||||
| Home (ref) RACF MSU Other | 45 (52.9) 6 (7.1) 28 (32.9) 6 (7.1) | 1.00 1.02 (0.60, 1.73) 0.95 (0.62, 1.46) 1.90 (0.93, 1.89) | 1.00 0.87 (0.36, 2.11) 1.92 (1.21, 3.06)* 0.81 (0.40, 1.63) | 1.00 0.49 (0.18, 1.35) 0.90 (0.59, 1.36) 0.25 (0.06, 1.01) | 1.00 0.84 (0.21, 3.38) 1.61 (0.80, 3.23) 0.28 (0.06, 1.32) | 1.00 0.58 (0.19, 1.74) 1.89 (1.21, 2.93)* 1.30 (0.57, 2.98) | 1.00 1.21 (0.35, 4.14) 2.64 (1.37, 5.09)* 1.77 (0.73, 4.26) | 1.00 0.38 (0.14, 1.02) 1.00 (0.71, 1.43) 0.47 (0.19, 1.16) | 1.00 0.34 (0.10, 1.09) 0.97 (0.55, 1.74) 0.86 (0.31, 2.40) |
| Discharge destination | |||||||||
| Home (ref) RACF MSU Other | 16 (18.8) 15 (58.8) 50 (58.8) 4 (4.7) | 1.00 0.53 (0.24, 1.19) 1.35 (0.96, 1.90) 0.73 (0.36, 1.50) | 1.00 0.76 (0.41, 1.41) 0.62 (0.35, 1.07) 0.85 (0.37, 1.96) | 1.00 0.87 (0.33, 2.29) 0.93 (0.51, 1.69) 0.74 (0.45, 1.20) | 1.00 0.87 (0.21, 3.38) 1.61 (0.80, 2.24) 0.28 (0.59, 1.32) | 1.00 3.16 (1.30, 7.67) 1.12 (0.54, 2.33) 1.21 (0.68, 2.18) | 1.00 0.99 (0.41, 2.36) 0.67 (0.31, 1.42) 0.89 (0.31, 2.54) | 1.00 2.93 (1.35, 6.39)* 1.92 (1.02, 3.61)* 1.83 (1.06, 3.17)* | 1.00 2.06 (0.83, 5.14) 2.26 (1.01, 5.07)* 3.75 (1.17, 11.90)* |
1Negative binomial regression (used for over-dispersed data); 2Poisson regression; *Statistical significance P < .05
Abbreviations: IRR—Incidence rate ratio; CI—Confidence interval; BPSD—Behaviours and Psychological Symptoms of Dementia; ED—Emergency Department; ref—reference variable; CCI—Charlson Co-morbidity Index; ad—Alzheimer’s Disease; Other—includes other dementia e.g. Dementia with Lewy Body; Parkinson’s Disease; Alcohol-related Dementia, undifferentiated; Mixed—includes dementia on background of mental health diagnosis, cognitive disability, past traumatic brain injury; VaD—Vascular Dementia; NPI—Neuropsychiatric Inventory; SCU—Special care Unit; LoS—Length of Stay; wk—week; NPS—Neuropsychiatric Symptoms; NN—Nurse Navigator; RACF—Residential Aged Care Facility; MSU—Memory Support Unit; other—includes Nation Disability Insurance Scheme Accommodation, hostels.
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