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Table 4 Bivariate and Multivariate analyses of adverse obstetrical outcomes with maternal age, Ayder Comprehensive Specialized Hospital, Northern Ethiopia, 2017/18 (n = 752)

From: Advanced maternal age pregnancy and its adverse obstetrical and perinatal outcomes in Ayder comprehensive specialized hospital, Northern Ethiopia, 2017: a comparative cross-sectional study

Pregnancy-induced hypertension1

Age group

No, n (%)

Yes, n (%)

COR (95% CI)

AOR (95% CI)

P value

20–34 years

355 (94.4%)

21 (5.6%)

1

1

< 0.001

≥ 35 years

310 (82.4%)

66 (17.6%)

3.599 (2.152–6.018)

4.149 (2.272–7.575) *

Antepartum hemorrhage1

 

No, n (%)

Yes, n (%)

COR (95% CI)

AOR (95% CI)

P value

20–34 years

358 (95.2%)

18 (4.8%

1

1

0.005

≥ 35 years

318 (84.6%)

58 (15.4%)

3.628 (2.093–6.287)

2.545 (1.318–4.915) *

Mode of Delivery1

 

Vaginal delivery

Cesarean delivery

COR (95% CI)

AOR (95% CI)

P value

20–34 years

303 (80.6%)

73 (19.4%)

1

1

< 0.001

≥ 35 years

253 (67.3%)

123 (32.7%)

2.018 (1.445–2.819)

2.722 (1.777–4.170) *

Premature Rupture of Membrane1

 Age group

No, n (%)

Yes, n (%)

COR (95% CI)

AOR (95% CI)

P value

20–34 years

319 (84.8%)

57 (15.2%)

1

0.533

≥ 35 years

325 (86.4%)

51 (13.6%)

0.878 (0.584–1.321)

Amniotic Fluid disorders1

Age group

No, n (%)

Yes, n (%)

COR (95% CI)

AOR (95% CI)

P value

20–34 years

360 (95.7%)

16 (4.3%)

1

0.320

≥ 35 years

354 (94.1%)

22 (5.9%)

1.398 (0.722–2.707)