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Table 1 Sample Size Calculation

From: Assessing health system factors affecting access and delivery of IPTp-SP and ITN to pregnant women attending ANC clinics in Ghana

Uptake and use as “P”

IPTp-SP3 (36.7%)

ITN Use (43%)

\( \boldsymbol{n}=\frac{{\boldsymbol{z}}^{\mathbf{2}}\boldsymbol{p}\left(\mathbf{1}-\boldsymbol{p}\right)}{{\boldsymbol{e}}^{\mathbf{2}}} \)

357

377

Sample size for each district

377

Finite population correction for computed sample size

 

Agortime-Ziope

South-Tongu

ANC Registrants for 2018 (N)

1078

3209

\( n=\frac{n_0}{1+\frac{\left({n}_0-1\right)}{N}} \)

280

338

Adding a 10% non response rate

308

372