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 |