Demographic differences between assisted reproduction families with 6- to 12-year-old singletons and twins.
| . | Singletons (n = 176) . | Twins (n = 124) . | . | . | ||
|---|---|---|---|---|---|---|
| M . | SE . | M . | SE . | F . | b . | |
| Parent participant age (years) | 43.18 | 0.28 | 42.02 | 0.35 | 9.98** | 1.16 |
| Partner age (years) | 44.51 | 0.38 | 43.31 | 0.46 | 5.63 | 1.19 |
| Child age (years) | 8.45 | 0.11 | 8.33 | 0.14 | 0.44 | 0.12 |
| Participant education | 4.87 | 0.08 | 4.47 | 0.11 | 11.19*** | 0.40 |
| Partner education | 4.65 | 0.11 | 4.74 | 0.13 | 0.42 | −0.09 |
| Family income | 9.69 | 0.20 | 10.18 | 0.27 | 2.67 | −0.48 |
| . | Singletons (n = 176) . | Twins (n = 124) . | . | . | ||
|---|---|---|---|---|---|---|
| M . | SE . | M . | SE . | F . | b . | |
| Parent participant age (years) | 43.18 | 0.28 | 42.02 | 0.35 | 9.98** | 1.16 |
| Partner age (years) | 44.51 | 0.38 | 43.31 | 0.46 | 5.63 | 1.19 |
| Child age (years) | 8.45 | 0.11 | 8.33 | 0.14 | 0.44 | 0.12 |
| Participant education | 4.87 | 0.08 | 4.47 | 0.11 | 11.19*** | 0.40 |
| Partner education | 4.65 | 0.11 | 4.74 | 0.13 | 0.42 | −0.09 |
| Family income | 9.69 | 0.20 | 10.18 | 0.27 | 2.67 | −0.48 |
All means and standard errors reported for singletons and twins reflect marginal means after adjusting for shared family variance using individual nested independent samples t-tests for each demographic variable. Participant and partner education were both measured on a seven-point scale (1 = did not complete high school, 2 = high school diploma, 3 = Some college, 4 = Associate's degree, 5 = Bachelor's degree, 6 = Master's or professional degree, 7 = Doctorate). Family income was measured on a 13-point scale (1 ≤ $10 000, 2 = $10 000–19 999, 3 = $20 000–29 999, 4 = $30 000–39 000, 5 = $40 000–49 999, 6 = $50 000–59 9999, 7 = $60 000–69 999, 8 = $70 000–79 999, 9 = $80 000–89 999, 10 = $90 000–99 999, 11 = $100 000–149 000, 12 = $150 000–199 999, 13 = $200 000 or more).
**P < 0.01, ***P = 0.001.
Demographic differences between assisted reproduction families with 6- to 12-year-old singletons and twins.
| . | Singletons (n = 176) . | Twins (n = 124) . | . | . | ||
|---|---|---|---|---|---|---|
| M . | SE . | M . | SE . | F . | b . | |
| Parent participant age (years) | 43.18 | 0.28 | 42.02 | 0.35 | 9.98** | 1.16 |
| Partner age (years) | 44.51 | 0.38 | 43.31 | 0.46 | 5.63 | 1.19 |
| Child age (years) | 8.45 | 0.11 | 8.33 | 0.14 | 0.44 | 0.12 |
| Participant education | 4.87 | 0.08 | 4.47 | 0.11 | 11.19*** | 0.40 |
| Partner education | 4.65 | 0.11 | 4.74 | 0.13 | 0.42 | −0.09 |
| Family income | 9.69 | 0.20 | 10.18 | 0.27 | 2.67 | −0.48 |
| . | Singletons (n = 176) . | Twins (n = 124) . | . | . | ||
|---|---|---|---|---|---|---|
| M . | SE . | M . | SE . | F . | b . | |
| Parent participant age (years) | 43.18 | 0.28 | 42.02 | 0.35 | 9.98** | 1.16 |
| Partner age (years) | 44.51 | 0.38 | 43.31 | 0.46 | 5.63 | 1.19 |
| Child age (years) | 8.45 | 0.11 | 8.33 | 0.14 | 0.44 | 0.12 |
| Participant education | 4.87 | 0.08 | 4.47 | 0.11 | 11.19*** | 0.40 |
| Partner education | 4.65 | 0.11 | 4.74 | 0.13 | 0.42 | −0.09 |
| Family income | 9.69 | 0.20 | 10.18 | 0.27 | 2.67 | −0.48 |
All means and standard errors reported for singletons and twins reflect marginal means after adjusting for shared family variance using individual nested independent samples t-tests for each demographic variable. Participant and partner education were both measured on a seven-point scale (1 = did not complete high school, 2 = high school diploma, 3 = Some college, 4 = Associate's degree, 5 = Bachelor's degree, 6 = Master's or professional degree, 7 = Doctorate). Family income was measured on a 13-point scale (1 ≤ $10 000, 2 = $10 000–19 999, 3 = $20 000–29 999, 4 = $30 000–39 000, 5 = $40 000–49 999, 6 = $50 000–59 9999, 7 = $60 000–69 999, 8 = $70 000–79 999, 9 = $80 000–89 999, 10 = $90 000–99 999, 11 = $100 000–149 000, 12 = $150 000–199 999, 13 = $200 000 or more).
**P < 0.01, ***P = 0.001.
This PDF is available to Subscribers Only
View Article Abstract & Purchase OptionsFor full access to this pdf, sign in to an existing account, or purchase an annual subscription.
