Table 1.
Demographic data of control group and gestational hypertension group.
| Characteristic | Control Group | Gestational hypertension Group | Total | P-value |
|---|---|---|---|---|
| (n = 12,164) | (n = 3,041) | |||
| n (%) | n (%) | n (%) | ||
| Maternal Factors | ||||
| Maternal age | 1.000 | |||
| <25 | 972 (8) | 243 (8) | 1,215 | |
| 25–29 | 2,828 (23.2) | 707 (23.2) | 3,535 | |
| 30–34 | 4,624 (38.0) | 1,156 (38) | 5,780 | |
| ≥35 | 3,740 (30.7) | 935 (30.7) | 4,675 | |
| Family incomea | 0.009 | |||
| $≤18,780 | 2,293 (18.9) | 554 (18.2) | 2,847 | |
| $18,781–27,600 | 4,403 (36.2) | 1,182 (38.9) | 5,585 | |
| $27,601–42,000 | 2,979 (24.5) | 752 (24.7) | 3,731 | |
| $>42,000 | 2,489 (20.5) | 553 (18.2) | 3,042 | |
| Urbanization | 0.12 | |||
| Urban | 7,803 (64.1) | 1,905 (62.6) | 9,708 | |
| Suburban | 1,436 (11.8) | 349 (11.5) | 1,785 | |
| Rural | 2,925 (24) | 787 (25.9) | 3,712 | |
| Mode of delivery | <0.001 | |||
| Vaginal delivery | 7,639 (62.8) | 1,179 (38.8) | 8,818 | |
| Cesarean section | 4,525 (37.2) | 1,862 (61.2) | 6,387 | |
| Maternal comorbidity | ||||
| Hyperlipidemia | 262 (2.2) | 161 (5.3) | 423 | <0.001 |
| asthma | 554 (4.6) | 180 (5.9) | 734 | 0.002 |
| allergic rhinitis | 3,931 (32.3) | 1,004 (33) | 4,935 | 0.46 |
| atopic dermatitis | 502 (4.1) | 137 (4.5) | 639 | 0.35 |
| urticaria | 2,808 (23.1) | 707 (23.2) | 3,515 | 0.85 |
| Pregnancy-related complication | ||||
| Preeclampsia or eclampsia | 45 (0.4) | 254 (8.4) | 299 | <0.001 |
| Gestational diabetes | 229 (1.9) | 255 (8.4) | 484 | <0.001 |
| Neonatal Factors | ||||
| Neonatal Gender | 1.000 | |||
| Female | 5,780 (47.5) | 1,445 (47.5) | 7,225 | |
| Male | 6,384 (52.5) | 1,596 (52.5) | 7,980 | |
| Number of babies | <0.001 | |||
| Singleton | 11,859 (97.5) | 2,895 (95.2) | 14,754 | |
| Multiple | 305 (2.5) | 146 (4.8) | 451 | |
| Gestational age | <0.001 | |||
| >37 wks | 11,097 (91.2) | 2,271 (74.7) | 13,368 | |
| 34–36 + 6 wks | 963 (7.9) | 640 (21) | 1,603 | |
| 28–33 + 6 wks | 58 (0.5) | 85 (2.8) | 143 | |
| <28 wks | 46 (0.4) | 45 (1.5) | 91 | |
| Birth body weight | <0.001 | |||
| >2,500 g | 11,085 (91.1) | 2,287 (75.2) | 13,372 | |
| 1,500 g–2,500 g (LBW) | 871 (7.2) | 559 (18.4) | 1,430 | |
| <1,500 g (VLBW) | 167 (1.4) | 176 (5.8) | 343 | |
| <1,000 g (ELBW) | 41 (0.3) | 19 (0.6) | 60 | |
a
Family income values by New Taiwan Dollars.