Table 2.
Comparison of perinatal outcomes between adolescent mothers 12–19 and mothers 20–34 years of age
| Total, n (%) | Maternal age, n (%) | cOR (95% CI)* | p-Valuec | aOR (95% CI) * | p-valued | ||
|---|---|---|---|---|---|---|---|
| 12–19 Years | 20–34 Years | ||||||
| Gestational agea | |||||||
| < 37 weeks | 8564 (9.0) | 1068 (10.2) | 7496 (8.8) | 1.18 (1.10–1.26) | < 0.001 | 1.14 (1.06–1.23) | 0.001 |
| 37 weeks | 86,839 (91.0) | 9358 (89.8) | 77,481 (91.2) | 1 | 1 | ||
| Birth outcome | |||||||
| Live birth | 95,403 (95.2) | 10,426 (94.5) | 84,977 (95.3) | 1 | 1 | ||
| Stillbirth | 3102 (3.1) | 359 (3.3) | 2743 (3.1) | 1.07 (0.95–1.19) | 0.258 | 1.08 (0.95–1.22) | 0.230 |
| Spontaneous Abortion | 1684 (1.7) | 243 (2.2) | 1441 (1.6) | 1.37 (1.19–1.58) | < 0.001 | 0.94 (0.83–1.11) | 0.488 |
| Infant birth weight ( 37 weeks)a | |||||||
| < 2500 g | 6572 (7.6) | 986 (10.5) | 5586 (7.2) | 1.51 (1.41–1.63) | < 0.001 | 1.46 (1.34–1.59) | < 0.001 |
| 2500 g | 80,267 (92.4) | 8372 (89.5) | 71,895 (92.8) | 1 | 1 | ||
| ENND ( 37 weeks)a,b | |||||||
| Yes | 441 (0.5) | 82 (1.0) | 359 (0.5) | 1.96 (1.57–2.45) | < 0.001 | 1.58 (1.23–2.02) | < 0.001 |
| No | 82,159 (99.5) | 8511 (99.0) | 73,648 (99.5) | 1 | 1 | ||
| Birth defect | |||||||
| No | 99,674 (99.5) | 10,954 (99.3) | 88,720 (99.5) | 1 | 1 | ||
| Yes¥ | 515 (0.5) | 74 (0.7) | 441 (0.5) | 1.36 (1.06–1.74) | 0.015 | 1.36 (1.02–1.80) | 0.032 |
aLive births only (n= 95,403)
bEarly neonatal death (ENND); term births (n= 86,839)
cp-value for cOR
dp-value for aOR
*The cOR (95% CI) and aOR (95% CI) were calculated with 20-34 years as the reference age group
Gestational age model was restricted to live births only with adjustment for parity, mode of delivery, singleton/multiple deliveries, and number of antenatal visits
Birth outcome model was adjusted for parity, mode of delivery and number of antenatal visits
Early neonatal death model was restricted to full-term infants (gestation ≥37 weeks) and adjusted for parity, mode of delivery and number of antenatal visits
Birth weight model was restricted to full-term infants (gestation ≥37 weeks) and adjusted for parity, mode of delivery, singleton/multiple deliveries and number of antenatal visits
Overall birth defect model was adjusted for parity, mode of delivery, singleton/multiple births and number of antenatal visits. ¥Newborns with at least one of the sixteen major external birth defects of interest to the study