TABLE 2.
Final model of the determinants of small-for-gestational-age (SGA) and large-for-gestational-age (LGA)1
| SGA | LGA | |
|---|---|---|
| Variables | OR (95% CI) | OR (95% CI) |
| Urban/rural area of residence | ||
| Urban | Ref | Ref |
| Rural | 1.01 (1.00, 1.01) | 1.02 (1.01, 1.02) |
| Housing conditions | ||
| No inadequacy | Ref | Ref |
| 1–2 inadequacies | 1.01 (1.00, 1.01) | 1.08 (1.08, 1.09) |
| 3+ inadequacies | 1.06 (1.05, 1.07) | 1.11 (1.10, 1.12) |
| Maternal race/ethnicity | ||
| White/Asian descent | Ref | Ref |
| Mixed-race (parda) | 1.08 (1.07, 1.09) | 1.07 (1.06, 1.07) |
| Black | 1.21 (1.19, 1.22) | 0.99 (0.98, 1.00) |
| Indigenous | 1.11 (1.06, 1.15) | 1.22 (1.19, 1.25) |
| Marital status | ||
| Married, civil union | Ref | Ref |
| Single, divorced, widowed | 1.08 (1.07, 1.08) | 0.93 (0.92, 0.93) |
| Maternal schooling | ||
| ≥8 y of study | Ref | Ref |
| 4–7 y of study | 1.14 (1.13, 1.15) | 1.09 (1.08, 1.09) |
| 1–3 y of study | 1.26 (1.24, 1.28) | 1.18 (1.17, 1.19) |
| Illiterate | 1.47 (1.42, 1.52) | 1.14 (1.11, 1.18) |
| Number of prenatal visits | ||
| ≥7 visits | Ref | Ref |
| 4–6 visits | 1.11 (1.10, 1.12) | 1.09 (1.09, 1.10) |
| 1–3 visits | 1.26 (1.24, 1.27) | 1.16 (1.14, 1.17) |
| None | 1.57 (1.53, 1.60) | 0.95 (0.93, 0.97) |
| Maternal age at birth | ||
| 20–35 y | Ref | Ref |
| 14–20 y | 1.21 (1.20, 1.22) | 0.72 (0.72, 0.73) |
| 35–49 y | 1.12 (1.10, 1.13) | 1.26 (1.25, 1.27) |
| Newborn's sex | ||
| Male | Ref | Ref |
| Female | 1.04 (1.04, 1.05) | 0.99 (0.98, 0.99) |
1
Multinomial (polytomous) adjusted logistic regression was applied to all modeled variables and year of cohort entry. Ref, reference.