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Table 3 Overall incidence rate of pregnancy for whole cohorts of reproductive age women on ART at public hospital of Jigjiga and Harar town, 2020. From September 11, 2014 to September 10, 2019

From: Effect of predictors on incidence rate of pregnancy among reproductive age women on antiretroviral therapy at public hospitals of Jigjiga and Harar Towns, Eastern Ethiopia: a retrospective cohort study

Cohort

Person-month

Failures

Rate

95% Conf. Interval

0–12

4060

50

0.0123

0.0094, 0.0164

12–24

2530

15

0.0059

0.0036, 0.0104

24–36

1586

4

0.0025

0.0009, 0.0090

36–48

906

3

0.0033

0.0010, 0.0162

> 48

358

0

0

 

Total

9440

72

0.0076

0.0060, 0.0098