Table 1 Demographic and social profile of the development and validation data sets from the 2010, 2011–2012, and 2012–2013 prevention of mother-to-child HIV transmission surveys, South Africa
Development Data Set (N = 9456) | Validation Data Set (N = 4658) | Total Data Set (N = 4114) | ||
|---|---|---|---|---|
Risk factor | N (%) | |||
Age (years) | < 20 | 3192 (33.76) | 1670 (35.85) | 4862 (34.45) |
20–24 | 6264 (66.24) | 2988 (64.15) | 9252 (65.55) | |
Ethnicity | Black | 8,498 (89.87) | 4213 (90.45) | 12,711 (90.06) |
Non-black | 958 (10.13) | 445 (9.55) | 1403 (9.94) | |
Marital status of mother | Single/divorced/widowed | 8296 (87.75) | 4022 (86.35) | 12,318 (87.29) |
Married | 1158 (12.25) | 636 (13.65) | 1794 (12.71) | |
Educational level of mother | Primary or less | 1174 (12.42) | 607 (13.04) | 1781 (12.63) |
High school or more | 8276 (87.58) | 4049 (86.96) | 12,325 (87.37) | |
Type of house | Brick/cement | 7249 (76.68) | 3583 (76.94) | 10,832 (76.76) |
Informal | 2205 (23.32) | 1074 (23.06) | 3279 (23.24) | |
Type of toilet | Flush | 4608 (48.74) | 2296 (49.30) | 6904 (48.93) |
Pit-latrine/Portable/other | 4846 (51.26) | 2361 (50.70) | 7207 (51.07) | |
Fuel used for cooking | Electricity/gas/paraffin | 8623 (91.21) | 4250 (91.26) | 12,873 (91.23) |
Wood/coal/other | 831 (8.79) | 407 (8.74) | 1238 (8.77) | |
Income from own employment | No | 8604 (91.01) | 4277 (91.84) | 12,881 (91.28) |
Yes | 850 (8.99) | 380 (8.16) | 1230 (8.72) | |
Income from family | No | 933 (9.87) | 452 (9.71) | 1385 (9.82) |
Yes | 8521 (90.13) | 4205 (90.29) | 12,726 (90.18) | |
Income from grants | No | 8405 (88.9) | 4133 (88.75) | 12,538 (88.85) |
Yes | 1049 (11.1) | 524 (11.25) | 1573 (11.15) | |
Planned pregnancy | No | 6390 (71.14) | 3089 (69.82) | 9479 (70.71) |
Yes | 2592 (28.86) | 1335 (30.18) | 3927 (29.29) | |
Knowledge of weeks pregnant when received last HIV test result | No | 613 (13.09) | 298 (12.84) | 911 (13.01) |
Yes | 4069 (86.91) | 2023 (87.16) | 6092 (86.99) | |
Knowledge of HIV status of child’s father | No | 2934 (51.02) | 1438 (50.71) | 4372 (50.91) |
Yes | 2817 (48.98) | 1398 (49.29) | 4215 (49.09) | |
Number of pregnancies | 1 | 5782 (64.19) | 2867 (64.64) | 8649 (64.34) |
> = 2 | 3226 (35.81) | 1568 (35.36) | 4794 (35.66) | |
Number of children | 1 | 6118 (67.91) | 3037 (68.48) | 9155 (68.1) |
> = 2 | 2891 (32.09) | 1398 (31.52) | 4289 (31.9) | |
Knowledge of breastfeeding as a mode of MTCT | No | 867 (10.25) | 422 (10.12) | 1289 (10.21) |
Yes | 7590 (89.75) | 3747 (89.88) | 11,337 (89.79) | |
Knowledge of PMTCT programme | No | 2102 (22.23) | 1058 (22.72) | 3160 (22.39) |
Yes | 7352 (77.77) | 3599 (77.28) | 10,951 (77.61) | |