Exposed to SBC | Unexposed to SBC | Total | P-value | ||||
---|---|---|---|---|---|---|---|
No. | % | No. | % | No. | % | ||
Age | |||||||
10 - 12 years | 78 | 30% | 746 | 41% | 832 | 40% | 0.004 |
13-14 years | 182 | 70% | 1073 | 59% | 1247 | 60% | |
Total | 260 | 100.0 | 1819 | 100.0 | 2079 | 100.0 | |
Sex | |||||||
Male | 104 | 40% | 928 | 51% | 1034 | 49.7 | 0.01 |
Female | 156 | 60% | 891 | 49% | 1045 | 50.3 | |
Total | 260 | 100.0 | 1819 | 100.0 | 2079 | 100.0 | |
Population group | |||||||
Black African | 229 | 1 | 1510 | 83% | 1746 | 84% | 0.27 |
White | 8 | 0 | 109 | 6% | 104 | 5% | |
Coloured | 18 | 0 | 164 | 9% | 187 | 9% | |
Indian/Asian | 5 | 0 | 36 | 2% | 42 | 2% | |
Total | 260 | 100.0 | 1819 | 100.0 | 2079 | 100.0 | |
Province | |||||||
Eastern Cape | 23 | 9% | 255 | 14% | 291 | 14% | 0.07 |
Free State | 18 | 7% | 109 | 6% | 125 | 6% | |
Gauteng | 81 | 31% | 364 | 20% | 437 | 21% | |
KwaZulu-Natal | 52 | 20% | 400 | 22% | 457 | 22% | |
Limpopo | 29 | 11% | 236 | 13% | 249 | 12% | |
Mpumalanga | 10 | 4% | 109 | 6% | 125 | 6% | |
North West | 23 | 9% | 127 | 7% | 146 | 7% | |
Northern Cape | 5 | 2% | 36 | 2% | 42 | 2% | |
Western Cape | 18 | 7% | 182 | 10% | 208 | 10% | |
Total | 260 | 100.0 | 1819 | 100.0 | 2079 | 100.0 | |
Grade | |||||||
Grade 1 | 5 | 2% | 18 | 1% | 20 | 1% | 0.007 |
Grade 2 | 5 | 2% | 54 | 3% | 41 | 2% | |
Grade 3 | 5 | 2% | 143 | 8% | 143 | 7% | |
Grade 4 | 31 | 12% | 286 | 16% | 327 | 16% | |
Grade 5 | 59 | 23% | 447 | 25% | 511 | 25% | |
Grade 6 | 52 | 20% | 411 | 23% | 470 | 23% | |
Grade 7 | 80 | 31% | 321 | 18% | 409 | 20% | |
Grade 8 | 21 | 8% | 107 | 6% | 123 | 6% | |
Total | 258 | 100.0 | 1786 | 100.0 | 2044 | 100.0 |