Table 1.
Recurrent hypertensive disorder type in 2nd pregnancy by hypertensive disorder type in 1st pregnancy
| Nulliparous women at study entry | 2nd pregnancy, N (%) | ||||||
|---|---|---|---|---|---|---|---|
| 1st pregnancy | Normotensive (n = 25,475) | Gestational hypertension (n = 642) | Preeclampsia (n = 493) | Eclampsiaa (n = 3) | Chronic hypertensionb (n = 281) | Superimposed preeclampsiab (n = 69) | Incidence/ recurrencec |
| Normotensive (n = 23,913) | 23,301 (97.4) | 284 (1.2) | 253 (1.1) | 2 (0.01) | 57 (0.24) | 16 (0.07) | 612 (2.6) |
| Gestational hypertension (n = 1,538) | 1,195 (77.7) | 200 (13.0) | 86 (5.6) | – | 44 (2.9) | 13 (0.85) | 343 (22.3) |
| Preeclampsia (n = 1,319) | 968 (73.4) | 156 (11.8) | 150 (11.4) | 1 (0.08) | 25 (1.9) | 19 (1.4) | 351 (26.6) |
| Eclampsia (n = 17)a | 11 (64.7) | 2 (11.8) | 4 (23.5) | – | – | – | |
| Chronic hypertension (n = 114)d | – | – | – | – | 103 (90.4) | 11 (9.7) | – |
| Superimposed preeclampsia (n = 62)d | – | – | – | – | 52 (83.9) | 10 (16.1) | – |
aWomen who developed eclampsia (n = 17 in the 1st pregnancy, n = 3 in the 2nd pregnancy) were combined with the preeclampsia group in the 1st pregnancy or in the 2nd pregnancy.
bWomen who developed chronic hypertension (n = 126) or superimposed preeclampsia (n = 48) by the time of their 2nd pregnancy were combined.
cIncidence/recurrence of hypertensive disorder in the 2nd pregnancy by hypertensive disorder status in the 1st pregnancy.
dWomen with a history of chronic hypertension/superimposed preeclampsia in the 1st pregnancy (n = 176) were excluded from further analyses.