| Characteristics | Category | Low knowledge (%) | Crude OR (95% CI) | value (crude) | Adjusted OR (95% CI) | value (adjusted) |
| Residence | Urban | 664 (21.11) | 1 | | | | Rural | 3,477 (35.44) | 2.05 (1.67, 2.53) | <0.0001 | | |
| Age | 15–24 | 1,871 (39.92) | 1 | | 1 | | 25–34 | 1,010 (27.6) | 0.57 (0.51, 0.65) | <0.0001 | 0.59 (0.52, 0.68) | <0.0001 | 35–44 | 679 (27.19) | 0.56 (0.49, 0.65) | <0.0001 | 0.54 (0.46, 0.63) | <0.0001 | 45–49 | 244 (27.42) | 0.57 (0.46, 0.71) | <0.0001 | 0.49 (0.40, 0.60) | <0.0001 |
| Current marital status | Never in union | 1,833 (36.87) | 1 | | 1 | | Married | 2,061 (28.79) | 0.69 (0.62, 0.78) | <0.0001 | 0.73 (0.64, 0.84) | <0.0001 | Living with partner | 100 (31.87) | 0.80 (0.54, 1.20) | 0.280 | 1.17 (0.87, 1.57) | 0.307 | Widowed | 22 (37.95) | 1.05 (0.51, 2.17) | 0.901 | 0.74 (0.35, 1.60) | 0.447 | Divorced | 99 (41.79) | 1.23 (0.87, 1.74) | 0.245 | 1.14 (0.84, 1.54) | 0.400 | No longer living together/separated | 26 (22.6) | 0.50 (0.25, 1.00) | 0.050 | 0.57 (0.34, 0.96) | 0.033 |
| Region | Accessible regions | 2,410 (33.14) | 2.27 (1.70, 3.01) | <0.0001 | | | Hard to reach regions | 1,319 (34.31) | 2.39 (1.76, 3.24) | <0.0001 | | | City administrations | 412 (17.95) | 1 | 1 | | |
| Education | No education | 1,834 (44.01) | 8.74 (6.14, 12.44) | <0.0001 | 7.42 (5.70, 9.66) | <0.0001 | Primary | 1,989 (31.16) | 5.03 (3.54, 7.16) | <0.0001 | 3.49 (2.71, 4.48) | <0.0001 | Secondary | 224 (15.8) | 2.09 (1.39, 3.13) | <0.0001 | 1.55 (1.17, 2.05) | 0.002 | More than secondary | 94 (8.251) | 1 | | 1 | |
| Wealth quintile | Lowest | 1,144 (42.7) | 2.86 (2.21, 3.70) | <0.0001 | 1.28 (1.11, 1.48) | 0.001 | Second | 785 (37.05) | 2.26 (1.78, 2.87) | <0.0001 | 1.06 (0.92, 1.22) | 0.390 | Middle | 768 (35.66) | 2.13 (1.67, 2.71) | <0.0001 | 1.19 (1.03, 1.36) | 0.015 | Fourth | 723 (30.15) | 1.66 (1.31, 2.09) | <0.0001 | 1.01 (0.89, 1.16) | 0.828 | Highest | 721 (20.67) | 1 | | 1 | |
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