Table 2.
Metrics of the timing of HIV diagnosis and linkage to HIV care among persons diagnosed with HIV in King County, 2005–2009
| HIV Surveillance | One-on-One Program | ||||||
|---|---|---|---|---|---|---|---|
|
| |||||||
| 2005 (n = 325) | 2006 (n = 314) | 2007 (n = 324) | 2008 (n = 316) | 2009 (n = 311) | Combined (n = 1590) | 2005–09 (n = 368) | |
| Completed HIV testing history, No. (% total) | 138 (42) | 196 (62) | 203 (63) | 200 (63) | 187 (60) | 925 (58) | 314 (85) |
| Never previously tested, No. (% of those with testing history) | 13 (9) | 34 (17) | 34 (17) | 33 (17) | 26 (14) | 140 (15) | 34 (11) |
| Intertest interval, median (IQR), monthsa | 11 (5–27) | 12 (5–36) | 11 (6–31) | 16 (8–36) | 15 (6–33) | 13 (6–33) | 12 (6–28) |
| Completed CD4 count within 6 months of diagnosis, No. (%) | 224 (69) | 234 (75) | 279 (86) | 281 (89) | 286 (92) | 1304 (82) | 348 (95) |
| CD4 count, median (IQR), cells/mm3 | 349 (155–553) | 328 (161–549) | 383 (224–555) | 355 (158–565) | 342 (171–545) | 357 (172–555) | 453 (321–629) |
| AIDS within one year of HIV diagnosis, No. (%) | 94 (29) | 102 (32) | 86 (27) | 121 (38) | 105 (34) | 508 (32) | NA |
| AIDS and death within one year of HIV diagnosis, No. (%) | 3 (1) | 7 (2) | 4 (1) | 10 (3) | 7 (2) | 31 (2) | NA |
| Linked to initial HIV care within 3 months, No. (%) | 268 (82) | 271 (86) | 291 (90) | 287 (91) | 282 (91) | 1399 (88) | NA |
| Linked to sustained HIV care, No. (%) | NA | NA | 230 (71) | 234 (74) | 227 (73) | 691 (73)b | NA |
IQR, interquartile range; NA, not applicable
a
Among persons who previously tested HIV negative
b
Denominator restricted to cases diagnosed between 2007 and 2009 (N=951)