Increasing late diagnosis in HIV infection in South Korea: 2000-2007

BMC Public Health

Table 2 Epidemiological characteristics of late diagnosis in HIV-infected individuals in Korea (2000-2007)

Characteristic	Total No. (%)	Study population No. (%)	Late diagnosis		Unadjusted		Adjusted
			No.	%*	OR (95% CI)	P-value	OR(95%CI)	P-value
Total	4259	2299	858	37.3	-	-	-	-
Gender
Male	3935 (92)	2108 (92)	798	37.9	Reference	-	Reference	-
Female	324 (8)	191 (8)	60	31.4	0.8 (0.5-1.0)	0.079	0.8 (0.6-1.2)	0.291
Age at HIV diagnosis
15-29	984 (23)	617 (27)	128	20.8	Reference	-	Reference	-
30-39	1386 (33)	734 (32)	248	33.8	2.0 (1.5-2.5)	<.001	1.7 (1.3-2.3)	<.001
40-49	1025 (24)	525 (23)	258	49.1	3.7 (2.8-4.8)	<.001	2.6 (1.9-3.5)	<.001
50≤	864 (20)	423 (18)	224	53	4.3 (3.3-5.6)	<.001	2.7 (2.0-3.7)	<.001
Transmission route^§
Heterosexual	2259 (59)	1189 (56)	412	34.7	Reference	-	Reference	-
Homosexual	1585 (41)	917 (44)	268	29.2	0.8 (0.6-0.9)	0.008	0.8 (0.7-0.9)	0.045
Other^†	13 (0)	5 (0)	2	40	1.3 (0.2-7.6)	0.802	2.1 (0.3-14)	0.442
Region
Metropolitan	3021 (71)	1595 (69)	593	37.2	Reference	-	Reference	-
Small town or rural	1238 (29)	704 (31)	265	37.6	1.0 (0.8-1.2)	0.832	0.8 (0.7-1.0)	0.117
Screening site
Public health center	868 (20)	545 (24)	154	28.3	Reference	-	Reference	-
Hospital	3047 (72)	1529 (66)	676	44.2	2.0 (1.6-2.5)	<.001	0.9 (0.7-1.3)	0.657
Blood center	344 (8)	225 (10)	28	12.4	0.4 (0.2-0.6)	<.001	0.5 (0.3-0.8)	0.003
Reason for testing
Health check-ups	1466 (40)	940 (41)	231	24.6	Reference	-	Reference	-
Knowledge of status^a	561 (15)	377 (16)	114	30.2	1.3 (1.0-1.7)	0.035	1.1 (0.8-1.6)	0.421
Risky behaviors^b	276 (8)	187 (8)	38	20.3	0.8 (0.5-1.2)	0.213	0.7 (0.4-1.1)	0.187
Clinical manifestation^c	1104 (30)	700 (31)	450	64.3	5.5 (4.4-6.8)	<.001	3.0 (2.4-3.8)	<.001
Others	259 (7)	95 (4)	25	26.3	1.1 (0.7-1.8)	0.708	0.9 (0.6-1.6)	0.827

Late diagnosis was CD4+ T cell count <200 cells/mm³ at the time of HIV diagnosis.
* % was the proportion of HIV-infected individuals with late diagnosis divided by total cases.
^§ Data without the information of transmission route was not presented.
^† Other at transmission route: HIV-infected individuals by transfusion and blood products.
OR: Odds ratio, CI: Confidence Interval.
In the number of total, the proportions for "Transmission route" and "Reason for testing" were calculated without missing cases (402, 593 cases).
In the number of study population, the proportions of transmission route were calculated without missing cases (188 cases were not surveyed).
^aKnowledge of status: Testing because individuals wanted to know their HIV status.
^bRisky behaviors for HIV infection.
^cClinical manifestation of HIV infection.

ISSN: 1471-2458