Table 2.
Maternal clinical characteristics and delivery outcomes according to maternal age, Brazilian Western Amazon, 2016–2017
| Variables | Categories | Adolescents (≤19 years) Total n=41 |
Late adolescents (20–24 years) Total n=103 |
Young women (25–30 years) Total n=141 |
P-value* |
|---|---|---|---|---|---|
| n (%) | n (%) | n (%) | |||
| Parity | One births | 29 (70.7) | 65 (63.1) | 56 (39.7) | <0.001 |
| Two births | 11 (26.8) | 29 (28.2) | 57 (40.4) | ||
| ≥3 births | 1 (2.5) | 9 (8.7) | 28 (19.9) | ||
| Prenatal visits | <6 visits | 30 (33.7) | 13 (35.1) | 28 (21.7) | 0.085 |
| ≥6 visits | 59 (66.3) | 24 (64.9) | 101 (78.3) | ||
| Mode of delivery | Vaginal | 21 (51.2) | 44 (42.7) | 49 (34.7) | 0.002 |
| Cesarean | 18 (43.9) | 59 (57.3) | 92 (65.3) | ||
| Vacuum | 2 (4.9) | 0 | 0 | ||
| Perineal tears | Yes | 8 (19.5) | 12 (11.6) | 13 (9.4) | 0.211 |
| No | 33 (80.5) | 91 (88.4) | 125 (90.6) | ||
| Episiotomy | Yes | 1 (2.4) | 1 (1.0) | 2 (1.4) | 0.796 |
| No | 40 (97.6) | 102 (99.0) | 139 (98.6) | ||
| Gestational age | Preterm | 4 (10.5) | 13 (14.1) | 15 (11.4) | 0.918 |
| Term | 34 (89.5) | 78 (84.8) | 116 (88.9) | ||
| Post-term | 0 | 1 (1.1) | 1 (0.7) | ||
| Newborn respiratory dysfunction | Yes | 4 (10.5) | 6 (6.5) | 16 (12.4) | 0.343 |
| No | 34 (89.5) | 87 (93.5) | 113 (87.6) | ||
|
| |||||
| Median (95% CI) | Median (95% CI) | Median (95% CI) | P-value** | ||
|
| |||||
| BMI | 22.49 (20.99 to 24.8) | 24.46 (22.66 to 25.68) | 24.88 (23.94 to 26.03) | 0.007 | |
| Weight gain | 11 (8.0 to 14.3) | 11 (9.7 to 13) | 12 (10 to 13) | 0.925 | |
| Weight loss | −10 (−12.3 to 9.0) | −9 (−10.1 to −8.0) | −10 (−11 to −8.26) | 0.790 | |
| Birth weight | 3,420 (3,207 to 3,483.97) | 3,275 (3,140 to 3,379) | 3,317.5 (3,210 to 3,395.4) | 0.324 | |
| Birth stature | 49 (48 to 49.3) | 49 (48 to 49) | 49 (48 to 49) | 0.647 | |
| Newborn HC | 34 (34 to 35) | 34 (34 to 35) | 35 (34 to 35) | 0.636 | |
| Newborn CC | 34 (33 to 35) | 34 (33 to 34) | 34 (33 to 34) | 0.701 | |
| Newborn Apgar 1’ | 8.5 (8 to 9) | 8 (8 to 9) | 8 (8 to 9) | 0.940 | |
Notes:
*
Chi-squared test;
**
Kruskal–Wallis test.
Abbreviations: BMI, body mass index; newborn HC, newborn head circumference; newborn CC, newborn chest circumference.