Table 1.
Weighted characteristics of the study population based on selected participants (weighted sample, N= 50,982,232).
| Characteristics | Fertile | Ever infertile | P-value |
|---|---|---|---|
| N= 3133 | N= 404 | ||
| Age (years) | 30.38 ± 0.21 | 34.54 ± 0.50 | <0.001 |
| Education lever (%) | 0.461 | ||
| More than high school | 65.61 | 69.32 | |
| High school | 21.23 | 19.87 | |
| Less than high school | 13.16 | 10.80 | |
| Race/Ethnicity (%) | 0.130 | ||
| Mexican American | 12.39 | 10.63 | |
| Non-Hispanic Black | 13.64 | 12.48 | |
| Non-Hispanic White | 54.63 | 61.58 | |
| Other Hispanic | 8.26 | 5.98 | |
| Other Race | 11.09 | 9.34 | |
| Poverty level index (%) | 0.007 | ||
| <=1.3 | 30.81 | 24.97 | |
| 1.3-1.85 | 12.08 | 7.89 | |
| >1.85 | 57.10 | 67.14 | |
| Marital status (%) | <0.001 | ||
| Married | 41.71 | 63.81 | |
| Divorced/Separated/Widowed | 10.15 | 11.24 | |
| Never married | 33.27 | 13.97 | |
| Living with partner | 14.87 | 10.98 | |
| Life’s Simple 7 components | |||
| Physical activity score | 1.82 ± 0.01 | 1.82 ± 0.03 | 0.980 |
| Smoking score | 1.52 ± 0.02 | 1.40 ± 0.05 | 0.033 |
| Blood pressure score | 1.72 ± 0.01 | 1.62 ± 0.03 | 0.019 |
| Body mass index score | 1.01 ± 0.03 | 0.77 ± 0.07 | 0.003 |
| Glucose score | 1.84 ± 0.01 | 1.71 ± 0.03 | <0.001 |
| Cholesterol score | 1.69 ± 0.01 | 1.56 ± 0.05 | 0.072 |
| Dietary intake score | 0.51 ± 0.02 | 0.50 ± 0.03 | 0.980 |
| Life’s Simple 7 score | 9.52 ± 0.07 | 8.80 ± 0.18 | <0.001 |
Mean ± SE for continuous variables: P-value value was calculated by weighted analysis of variance.
Percentages for categorical variables: P-value was calculated by weighted chi-square test.
The Benjamini-Hochberg method was used to adjust p values for multiple testing.