Table 1 Study setting of the UniTest Study
Area | Location | CDC/CBOs | Sample size |
|---|---|---|---|
Southern | Guangdong province | Lingnan parners Pengyou care Nanshan Center for Chronic Disease Control | 112 |
Western | Chongqing municipality | Chongqing CDC | 112 |
Northern | Tianjin municipality | Tianjin CDC Shenlan | 112 |
Eastern | Shandong province | Qingai | 112 |