Table 4:
Odds ratios for associations between agricultural household and birth outcomes, stratified by maternal or paternal work status in the analytical cohort (N=623,185)
| Mother Farmworker n=373 | Odds Ratio (95% CI) | Father Farmworker n=6,143 | Odds Ratio (95% CI) | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| N | events | % | Crude | Adjusteda | events | % | Crude | Adjusteda | |
| PTB (<37 weeks) | 605,671 | 30 | 8.2 | 0.86 (0.77, 0.96) | 0.82 (0.74, 0.92) | 334 | 5.6 | 0.85 (0.76, 0.94) | 0.81 (0.72, 0.91) |
| LBW (≤2,500 g) | 623,094 | 16 | 4.3 | 0.82 (0.50, 1.35) | 0.79 (0.48, 1.31) | 281 | 4.6 | 0.88 (0.78, 0.99) | 0.87 (0.77, 0.98) |
| SGA (3rd percentile) | 623,184 | 6 | 1.6 | 0.86 (0.39, 1.93) | 0.91 (0.41, 2.04) | 100 | 1.6 | 0.87 (0.72, 1.06) | 0.91 (0.75, 1.11) |
| SGA (5th percentile) | 623,184 | 9 | 2.4 | 0.69 (0.36, 1.33) | 0.73 (0.38, 1.42) | 197 | 3.2 | 0.92 (0.80, 1.06) | 0.96 (0.83, 1.11) |
| SGA (10th percentile) | 623,184 | 16 | 4.3 | 0.53 (0.32, 0.87) | 0.56 (0.34, 0.92) | 434 | 7.1 | 0.89 (0.81, 0.98) | 0.92 (0.83, 1.01) |
| Postterm birth (≥41 weeks) | 605,671 | 27 | 7.4 | 1.23 (0.83, 1.82) | 1.39 (0.94, 2.07) | 391 | 6.5 | 1.07 (0.97, 1.19) | 1.20 (1.08, 1.33) |
| Grade 1 Macrosomia (≥4,000g) | 623,094 | 27 | 7.2 | 0.95 (0.65, 1.41) | 0.89 (0.60, 1.32) | 518 | 8.4 | 1.13 (1.03, 1.23) | 1.16 (1.06, 1.27) |
| Grade 2 Macrosomia (≥4,500g) | 623,094 | 4 | 1.1 | 1.10 (0.41, 2.95) | 0.93 (0.35, 2.50) | 85 | 1.4 | 1.43 (1.15, 1.78) | 1.40 (1.13, 1.74) |
| Grade 3 Macrosomia (≥5,000g) | 623,094 | 0 | — | — | — | 10 | 0.2 | 1.76 (0.94, 3.30) | 1.55 (0.82, 2.90) |
| LGA (90th percentile) | 623,184 | 30 | 8.0 | 0.94 (0.64, 1.36) | 0.86 (0.59, 1.25) | 583 | 9.5 | 1.12 (1.03, 1.22) | 1.14 (1.04, 1.24) |
| LGA (95th percentile) | 623,184 | 15 | 4.0 | 0.94 (0.56, 1.58) | 0.84 (0.50, 1.42) | 326 | 5.3 | 1.27 (1.13, 1.42) | 1.27 (1.14, 1.42) |
| LGA (97th percentile) | 623,184 | 11 | 2.9 | 1.20 (0.66, 2.19) | 1.05 (0.57, 1.92) | 201 | 3.3 | 1.34 (1.17, 1.55) | 1.34 (1.16, 1.54) |
| APGAR score at 5 min (≤7) | 622,705 | 9 | 2.4 | 3.52 (1.82, 6.83) | 3.72 (1.91, 7.22) | 54 | 0.9 | 1.25 (0.96, 1.64) | 1.34 (1.02, 1.76) |
CI, confidence interval; LBW, Low birth weight; PTB, Preterm birth; LGA, Large for gestational age; SGA, Small for gestational age