Table 3.
Comparison of birth outcomes (preterm or full-term) prepandemic and during the pandemic by age group at delivery.
| Age group (years), n (%) | Prepandemic, n (%) | Pandemic, n (%) | Relative change, % | P value | Odds ratio (95% CI) | ||
|
|
Preterm | Full-term | Preterm | Full-term | Preterm |
|
|
| <20 | 474 (9.25) | 4648 (90.75) | 411 (9.27) | 4022 (90.73) | 0.19 | 1 | 1 (0.87-1.15) |
| 20-24 | 2587 (8.15) | 29,153 (91.85) | 2572 (8.36) | 28,190 (91.64) | 2.58 | .35 | 1.02 (0.97-1.08) |
| 25-29 | 3422 (8.36) | 37,498 (91.64) | 3286 (7.55) | 40,231 (92.45) | –9.70 | <.001a | 0.90 (0.85-0.94) |
| 30-34 | 3036 (8.10) | 34,427 (91.90) | 3223 (7.52) | 39,653 (92.48) | –7.24 | .002a | 0.92 (0.87-0.97) |
| 35-39 | 1363 (9.29) | 13,307 (90.71) | 1424 (8.74) | 14,873 (91.26) | –5.95 | .09 | 0.93 (0.86-1.01) |
| 40-44 | 310 (12.97) | 2080 (87.03) | 300 (12.02) | 2196 (87.98) | –7.34 | .34 | 0.91 (0.77-1.09) |
a5% statistical significance cutoff.