Table 3 The incidence of hypertensive disorders of pregnancy among different number of induced abortion.

From: Association of induced abortion with hypertensive disorders of pregnancy risk among nulliparous women in China: a prospective cohort study

Variable

No. Of previous IAs

p

0(N = 3813)

1(N = 937)

 ≥ 2(N = 441)

HDP

No

3612(94.7)

897(95.7)

424(96.1)

0.238

Yes

201(5.3)

40(4.3)

17(3.9)

GH

No

3706(97.2)

914(97.5)

430(97.5)

0.802

Yes

107(2.8)

23(2.5)

11(2.5)

PE

No

3719(97.5)

920(98.2)

435(98.6)

0.203

Yes

94(2.5)

17(1.8)

6(1.4)

  1. Abbreviations: IA, induced abortion; HDP, hypertensive disorder of pregnancy; GH, gestational hypertension; PE, pre-eclampsia. Categorical data was compared using the Chi-square test. *p < 0.05.
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