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The estimated sample size was calculated by using the sample size formula for cross-sectional studies: N = Z2p (1 − p)/d2, where N is the estimated minimum sample size, Z is the confidence level of 95% (the standard value is 1.96), P is the expected proportion of women with knowledge of MTCT routes for HIV in the population = 50% (based on previous studies in the area, [15, 25], and d is the precision at 95%CI = 0.05.
With an adjustment of 20% for nonresponse, a minimum sample size of 460 women with children below 5 years was required for the study.
Copyright and License information: ©2020 Nikolas A. S. Chotta et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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