Skip to main content

Advertisement

Table 1 Sample size estimation (per site)

From: CARRS Surveillance study: design and methods to assess burdens from multiple perspectives

Risk factors Level of confidence Margin of error Baseline levels of indicators Design effect Expected response rate No. of age/sex estimates Sample size
Tobacco use 1.96 0.05 0.23 1.5 0.8 6 3062
Hypertension 1.96 0.05 0.36 1.5 0.8 6 3983
Diabetes 1.96 0.05 0.15 1.5 0.8 6 2204
Overweight (BMI ≥ 23) 1.96 0.05 0.65 1.5 0.8 6 3933