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Table 1 Summary of sample size calculation for associated factors with malnutrition among women living with HIV/AIDS using Open Epi, open source calculator—SSCC

From: Undernutrition among HIV positive women in Humera hospital, Tigray, Ethiopia, 2013: antiretroviral therapy alone is not enough, cross sectional study

Variables as exposure

Assumptions

Sample size (controls + cases)

 

OR

P

Ratio

Power

CI

 

Anemia

2

33%

1:1

80%

95%

298

Food insecurity

1.9

41%

1:1

80%

95%

324

Low dietary diversity

2

33%

1:1

80%

95%

298

  1. OR = odds ratio, p = proportion, Ratio = cases to control & CI = confidence interval.