Cape Town | Gauteng | Eastern Cape | ||||||||||||||||
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Users in treatment for cocaine or crack (primary) | % of crack to total cocaine | % of users reporting cocaine overall1 | % new adm.3,4 | Users in treatment for cocaine or crack (primary) | % of crack to total cocaine | % of users reporting cocaine overall1 | % new adm.3,4 | Users in treatment for cocaine or crack (primary) | % of crack to total cocaine | % of users reporting cocaine overall1 | % new adm.3,4 | |||||||
n | % | n | % | n | % | n | % | n | % | n | % | |||||||
1997a | 71 | 3.4 | 85.9 | 91 | 4.3 | - | - | - | - | - | - | - | - | - | - | - | - | - |
1997b | 78 | 3.6 | 64.1 | 117 | 5.4 | - | - | - | - | - | - | - | - | - | - | - | - | - |
1998a | 131 | 5.7 | 78.6 | 265 | 11.5 | - | 157 | 8.0 | 52.5 | 271 | 12.8 | - | - | - | - | - | - | - |
1998b | 99 | 7.3 | 65.7 | 198 | 14.5 | - | 204 | 8.6 | 79.6 | 374 | 15.8 | - | - | - | - | - | - | - |
1999a | 126 | 8.3 | 72.2 | 168 | 11.0 | - | 283 | 10.3 | 78.6 | 453 | 16.5 | - | - | - | - | - | - | - |
1999b | 137 | 8.8 | 70.1 | 299 | 19.3 | 61.3 | 273 | 10.5 | 78.1 | 491 | 18.8 | - | - | - | - | - | - | - |
2000a | 132 | 7.8 | 65.9 | 284 | 16.8 | 61.2 | 267 | 10.6 | 77.4 | 430 | 17.1 | - | - | - | - | - | - | - |
2000b | 121 | 7.1 | 67.8 | 252 | 14.9 | 59.5 | 198 | 7.5 | 80.0 | 383 | 14.3 | 59.6 | - | - | - | - | - | - |
2001a | 144 | 9.2 | 68.1 | 335 | 21.3 | 54.8 | 210 | 7.4 | 77.0 | 466 | 16.4 | - | - | - | - | - | - | - |
2001b | 88 | 5.6 | 73.9 | 231 | 14.8 | 57.5 | 155 | 5.8 | 74.1 | 386 | 14.4 | 52.9 | - | - | - | - | - | - |
2002a | 106 | 6.6 | 52.8 | 211 | 13.1 | 63.2 | 183 | 5.2 | 84.6 | 429 | 14.6 | 59.6 | - | - | - | - | - | - |
2002b | 104 | 6.7 | 58.7 | 247 | 15.9 | 67.0 | 146 | 5.6 | 67.9 | 355 | 13.7 | 54.8 | - | - | - | - | - | - |
2003a | 136 | 7.9 | 72.1 | 312 | 18.1 | 55.9 | 155 | 5.9 | 66.1 | 381 | 14.6 | 51.0 | - | - | - | - | - | - |
2003b | 139 | 8.4 | 66.9 | 358 | 21.6 | 61.6 | 182 | 6.8 | 70.6 | 394 | 14.5 | 56.6 | - | - | - | - | - | - |
2004a | 219 | 9.7 | 65.8 | 491 | 21.8 | 59.4 | 256 | 9.1 | 72.3 | 507 | 18.0 | 69.5 | 33 | 5.1 | 48.5 | 76 | 11.6 | 69.7 |
2004b | 210 | 9.1 | 67.1 | 463 | 20.1 | 63.8 | 263 | 9.9 | 68.4 | 510 | 19.2 | 63.1 | 42 | 7.0 | 31.0 | 82 | 13.7 | 47.6 |
2005a | 205 | 8.3 | 62.9 | 475 | 19.2 | 69.3 | 271 | 9.0 | 69.0 | 577 | 19.0 | 63.1 | 73 | 10.9 | 65.8 | 125 | 18.6 | 62.5 |
2005b | 163 | 7.6 | 69.32 | 386 | 18.1 | 71.1 | 287 | 10.1 | 69.3 | 574 | 20.2 | 71.4 | 53 | 9.1 | 75.52 | 88 | 15.0 | 71.7 |
2006a | 159 | 6.0 | 65.42 | 415 | 15.6 | 59.1 | 345 | 11.1 | 71.3 | 667 | 21.4 | 64.1 | 145 | 18.4 | 78.22 | 218 | 27.7 | 63.7 |
2006b | 134 | 4.8 | 62.52 | 346 | 12.4 | 57.5 | 353 | 10.7 | 67.1 | 778 | 23.6 | 68.3 | 124 | 19.2 | 83.92 | 187 | 29.0 | 65.3 |
Trend test | Z = 4.461 | Z = 15.982 | Z = 3.775 | Z = 11.964 | Z = 9.941 | Z = 2.578 | ||||||||||||
Sigif. | p < 0.0001 | p < 0.0001 | p < 0.0001 | p < 0.0001 | p < 0.0001 | p < 0.005 |