Sociodemographic characteristics of the study population and bivariate analyses of associations with HIV-related knowledge
| Sociodemographic variable | N (valid %) (unless otherwise indicated) | Per cent of demographic group with low† HIV-related knowledge | P value* |
| Total | 56 307 | 41.0 | |
| Age (years) | |||
| 15–24 | 21 088 (37.5) | 46.1 | <0.001 |
| 25–34 | 17 783 (31.6) | 36.4 | |
| 35–49 | 17 436 (31.0) | 39.6 | |
| Mean age±SD | 28.91±9.689 | ||
| (Range) | (15–49) | ||
| Sex | |||
| Female | 38 948 (69.2) | 43.8 | <0.001 |
| Male | 17 359 (30.8) | 35.0 | |
| Highest level of educational attainment | |||
| No formal education | 18 414 (32.7) | 64.1 | <0.001 |
| Primary education | 9640 (17.1) | 43.2 | |
| Secondary education | 22 208 (39.4) | 33.0 | |
| Postsecondary education | 6044 (10.7) | 12.5 | |
| Literacy level (n=55 896) | |||
| Illiterate, low literacy level or visually impaired | 26 354 (47.1) | 57.0 | <0.001 |
| Literate | 29 542 (52.9) | 28.8 | |
| Employment status (n=56 025) | |||
| Unemployed | 18 720 (33.4) | 47.4 | <0.001 |
| Employed | 37 305 (66.6) | 37.9 | |
| Region of residence | |||
| Urban | 24 026 (42.7) | 30.0 | <0.001 |
| Rural | 32 281 (57.3) | 49.1 | |
| Ethnicity‡ | |||
| Fulani | 3518 (6.2) | 65.5 | <0.001 |
| Hausa | 15 417 (27.4) | 55.6 | |
| Ibibio | 1261 (2.2) | 32.1 | |
| Igbo | 7967 (14.1) | 31.4 | |
| Ijaw | 1097 (1.9) | 23.4 | |
| Yoruba | 7823 (13.9) | 29.3 | |
| Other | 19 225 (34.1) | 38.7 | |
| Religion | |||
| Catholicism | 6329 (11.2) | 32.4 | <0.001 |
| Other Christian | 20 102 (35.7) | 30.1 | |
| Islam | 29 057 (51.6) | 52.5 | |
| Traditionalism | 521 (0.9) | 62.3 | |
| Other or none | 298 (0.5) | 39.7 | |
| Relationship status | |||
| Never in union | 17 704 (31.4) | 38.4 | <0.001 |
| Currently in union or cohabiting | 36 552 (64.9) | 42.5 | |
| Formerly in union or cohabiting | 2051 (3.6) | 38.1 | |
| National wealth quintile | |||
| Lowest 20th | 9994 (17.7) | 69.1 | <0.001 |
| 20th–40th | 10 420 (18.5) | 53.7 | |
| 40th–60th | 10 824 (19.2) | 41.2 | |
| 60th–80th | 11 827 (21.0) | 32.2 | |
| Highest 20th | 13 242 (23.5) | 21.7 | |
| State-level wealth inequality ratio category | |||
| <1.50 | 8012 (14.2) | 28.5 | <0.001 |
| 1.50–1.79 | 20 629 (36.6) | 41.0 | |
| 1.80–2.19 | 25 578 (45.4) | 46.0 | |
| >2.19 | 2088 (3.7) | 39.0 | |
| HIV-related knowledge score (median (IQR))§ | |||
| (n=51 530) | 9 (7–11) |
*P values determined by X2 tests.
†Below sample median (<9).
‡Specific ethnic groups shown are those with >1000 members.
§Highest possible total score=12.