Table 1 Minimum sample size required for estimating demographic variables and priority health conditions
Parameter to be estimated | Sampling unit | Prevalence in other studies | Estimated minimum sample size n = [Np(1-p)]/ [(d2/Z21-α/2*(N-1) + p*(1-p)] [10] | Values used for sample size calculation |
|---|---|---|---|---|
Hypertension among adults | Adults 30 years or above | 42% [11] | 259 | Population size 50,000, p: 42%, d: 6%, Confidence level 95% |
Diabetes among adults | Adults 30 years or above | 12% [12]. | 113 | Population size 50,000, p: 12%, d: 6%, Confidence level 95% |
Anaemia in women | Females 12 years and above | 53% [13] | 265 | Population size 50,000, p: 53%, d: 6%, Confidence level 95% |
Malnutrition in under 5 children | Children less than 5 years | 50% [14] | 248 | Population size 5000, p: 50%, d: 6%, Confidence level 95% |
Demographic parameters | Household | 50% (to get the maximum sample size) [7] | 261 | Total number of households: 11000, p: 50%, d: 6%, Confidence level 95% |