Table 1 Characteristics of mothers and children enrolled in the Pelotas 2004 Birth Cohort
From: Repeated high blood pressure at 6 and 11 years at the Pelotas 2004 birth cohort study
Characteristics (%) | Original cohort (N = 4231) | Percentage located at 11 years (N = 3565) | p-value a | Analyzed sample (N = 3182) | p-value b |
|---|---|---|---|---|---|
Maternal Characteristics | |||||
Household income (quintiles) | < 0.001 | < 0.001 | |||
1 (poorest) | 871 (20.6) | 82.7 | 80.6 | ||
2 | 854 (20.2) | 86.3 | 85.1 | ||
3 | 816 (19.3) | 88.7 | 87.6 | ||
4 | 858 (20.3) | 89.6 | 88.7 | ||
5 (wealthiest) | 830 (19.6) | 84.3 | 82.4 | ||
Age at childbirth (years) | 0.001 | 0.001 | |||
≤ 20 | 1032 (24.4) | 85.2 | 83.8 | ||
21–25 | 1129 (26.7) | 83.8 | 82.1 | ||
26–30 | 924 (21.9) | 86.6 | 85.2 | ||
31+ | 1142 (27.0) | 89.4 | 88.2 | ||
Smoking during pregnancy | 0.059 | 0.079 | |||
No | 3067 (72.5) | 86.9 | 85.5 | ||
Yes | 1162 (27.5) | 84.6 | 83.2 | ||
Gestational diabetes mellitus | 0.011 | 0.008 | |||
No | 4100 (97.0) | 86.0 | 84.6 | ||
Yes | 126 (3.0) | 94.2 | 93.7 | ||
Hypertensionc in pregnancy | 0.623 | 0.546 | |||
No | 3220 (76.3) | 86.2 | 84.7 | ||
Yes | 1001 (23.7) | 86.8 | 85.6 | ||
Child Characteristics | |||||
Sex | 0.498 | 0.471 | |||
Male | 2195 (51.9) | 85.9 | 84.5 | ||
Female | 2034 (48.1) | 86.6 | 85.3 | ||
Birth weight | 0.776 | 0.517 | |||
≥ 2500 g | 3803 (90.0) | 86.3 | 85.0 | ||
< 2500 g | 423 (10.0) | 85.8 | 83.6 | ||
Gestational age (weeks) | 0.202 | 0.171 | |||
< 34 | 140 (3.3) | 82.1 | 79.1 | ||
34–36 | 472 (11.2) | 88.3 | 86.8 | ||
≥ 37 | 3603 (85.5) | 86.2 | 84.8 | ||
Weight-for-gestational age | 0.628 | 0.585 | |||
Small | 526 (12.5) | 85.7 | 84.3 | ||
Adequate | 3390 (80.4) | 86.2 | 84.8 | ||
Large | 300 (7.1) | 88.1 | 87.0 | ||
Skin color | 0.159 | 0.095 | |||
White | 2726 (68.2) | 88.3 | 87.1 | ||
Non-white | 1272 (31.8) | 89.8 | 89.0 | ||