Table 1 WHO-sampling method[12, 15]
Number of newly enrolled patients on ART per year | Required sample size |
|---|---|
1-75 | Recruit all |
76-110 | 75 |
111-199 | 100 |
200-250 | 110 |
251-299 | 120 |
300-350 | 130 |
351-400 | 135 |
401-450 | 140 |
451-550 | 145 |
551-700 | 155 |
701-850 | 160 |
851-1600 | 175 |
1601-2150 | 175 |
2151-4340 | 200 |
4341-5670 | 210 |
5671-10,000 | 215 |
>10,000 | WHO advice required |