Table 1.
Survey participation by year
|
Women (aged 17–49 years) |
Men (aged 17–54 years) |
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | ||
| Eligible population* | 21 129 | 21 234 | 22 011 | 22 289 | 21 849 | 22 726 | 22 267 | 20 399 | 20 586 | 21 344 | 21 656 | 21 382 | 22 100 | 21 779 | |
| Residents | |||||||||||||||
| Eligible | 13 663 | 13 606 | 14 132 | 14 242 | 13 967 | 14 853 | 13 862 | 10 863 | 10 789 | 11 169 | 11 250 | 11 091 | 11 811 | 11 293 | |
| Contacted† | 10 784 (94%) | 10 973 (98%) | 10 722 (94%) | 11 034 (96%) | 10362 (95%) | 10 194 (87%) | 9515 (85%) | 7965 (93%) | 7782 (94%) | 7302 (87%) | 7968 (93%) | 7406 (90%) | 7101 (80%) | 6858 (77%) | |
| Participated | 7711 (60%) | 7450 (56%) | 6181 (47%) | 5539 (41%) | 5806 (44%) | 5769 (45%) | 5897 (50%) | 4793 (47%) | 4586 (45%) | 3261 (34%) | 3118 (30%) | 2937 (29%) | 3152 (33%) | 3493 (40%) | |
| Complete sexual behaviour data‡ | 7403 (96%) | 6892 (93%) | 5429 (88%) | 4359 (79%) | 4403 (76%) | 3834 (66%) | 3608 (61%) | 4527 (94%) | 4249 (93%) | 2800 (86%) | 2434 (78%) | 1988 (68%) | 2113 (67%) | 2203 (63%) | |
| HIV test result§ | 4422 (57%) | 4104 (55%) | 3638 (59%) | 3570 (64%) | 3371 (58%) | 4299 (75%) | 3920 (66%) | 2763 (58%) | 2424 (53%) | 1851 (57%) | 1974 (63%) | 1802 (61%) | 1987 (63%) | 2013 (58%) | |
| All non-residents | |||||||||||||||
| Eligible | 7466 | 7628 | 7879 | 8047 | 7882 | 7873 | 8405 | 9536 | 9797 | 10175 | 10406 | 10291 | 10289 | 10486 | |
| Sampled | 1323 (18%) | 1195 (16%) | 1113 (14%) | 1619 (20%) | 1376 (17%) | 1465 (19%) | 1532 (18%) | 1376 (14%) | 1250 (13%) | 1237 (12%) | 1747 (17%) | 1382 (13%) | 1533 (15%) | 1568 (15%) | |
| Contacted¶ | 715 (56%) | 573 (57%) | 544 (66%) | 926 (74%) | 747 (73%) | 749 (53%) | 643 (43%) | 692 (52%) | 539 (53%) | 520 (59%) | 853 (67%) | 660 (66%) | 777 (53%) | 599 (39%) | |
| Participated | 422 (57%) | 324 (48%) | 330 (45%) | 424 (35%) | 476 (47%) | 412 (53%) | 461 (70%) | 355 (50%) | 284 (43%) | 325 (45%) | 322 (28%) | 406 (45%) | 405 (50%) | 438 (72%) | |
| Complete sexual behaviour data‡ | 392 (93%) | 304 (94%) | 306 (93%) | 388 (92%) | 438 (92%) | 364 (88%) | 399 (87%) | 329 (93%) | 272 (96%) | 300 (92%) | 298 (93%) | 359 (88%) | 359 (89%) | 374 (85%) | |
| HIV test result§ | 299 (71%) | 196 (60%) | 245 (74%) | 309 (73%) | 362 (76%) | 328 (80%) | 325 (70%) | 260 (73%) | 192 (68%) | 264 (81%) | 255 (79%) | 317 (78%) | 346 (85%) | 318 (73%) | |
Data are n or n (%).
Resident and non-resident eligibility lists for the HIV surveillance were generated from a snapshot of the ACDIS database produced at the end of the previous year.
By the time of the scheduled survey visit, on average 22% of eligible resident men and 18% of eligible resident women had died, outmigrated (thus making them no longer eligible for the resident sample), migrated to an unknown destination, or were unable to complete the survey for other reasons; all other individuals on the eligibility list were deemed contactable and contribute to the denominator for the contact rate.
Number and percentage of participants who answered all sexual behaviour questions.
Number and percentage of participants who agreed to an HIV test.
By the time of the scheduled survey visit, on average 15% of sampled non-resident men and 14% of sampled non-resident women were uncontactable, had died, or were unable to complete the survey for other reasons; all other individuals on the eligibility list were deemed contactable and contributed to the denominator for the contact rate.