Table 1. Characteristics of study participants, by VCT strategy.
| Opt-out strategy (Team 1, N = 5938) N (%) | Opt-in strategy (Team 2, N = 6652) N (%) | p-value1 | |
| Sex | |||
| Female | 2541 (42.8%) | 3087 (46.4%) | 0.02 |
| Male | 3397 (57.2%) | 3565 (53.6%) | |
| Age (years) | |||
| <21 | 2001 (33.7%) | 2200 (33.1%) | 0.43 |
| 21–22 | 1628 (27.4%) | 1864 (28.0%) | |
| 23–24 | 1429 (24.1%) | 1719 (25.8%) | |
| ≥25 | 877 (14.8%) | 869 (13.1%) | |
| Currently married | |||
| Yes | 2784 (46.9%) | 2833 (42.6%) | 0.18 |
| Tribe | |||
| Sukuma | 4290 (72.4%) | 5779 (87.0%) | 0.10 |
| Non-Sukuma | 1639 (27.6%) | 867 (13.0%) | |
| Religion | |||
| Christian | 4854 (81.9%) | 5704 (85.9%) | 0.39 |
| Muslim | 326 (5.5%) | 214 (3.2%) | |
| None/traditional/other | 744 (12.6%) | 724 (10.9%) | |
| Circumcised (males only) | |||
| Yes | 1390 (42.0%) | 1363 (38.5%) | |
| Highest level of education | |||
| Secondary or higher | 618 (10.4%) | 1426 (21.5%) | <0.001 |
| Main occupation | |||
| Business | 825 (14.0%) | 1230 (18.5%) | 0.22 |
| Fishing/farming | 3572 (60.5%) | 3892 (58.7%) | |
| Student | 1076 (18.2%) | 1024 (15.4%) | |
| None/other | 432 (7.3%) | 490 (7.4%) | |
| Type of site/community | |||
| Farming/mainly farming | 4700 (79.2%) | 4955 (74.5%) | 0.21 |
| Fishing/mainly fishing | 363 (6.1%) | 513 (7.7%) | |
| Trading centre | 490 (8.3%) | 1164 (17.5%) | |
| Mining | 385 (6.5%) | 19 (0.3%) | |
| HIV serostatus | |||
| Positive | 144 (2.4%) | 190 (2.9%) | 0.32 |
1
Rao-Scott F (second-order correction to the Pearson χ2 statistic to account for clustered design).