Table 2 The logistic regression analysis of characteristics of the recent HIV infection including acute HIV infection in Korea from 2008 to 2015.

From: Characteristics of recent HIV infection among individuals newly diagnosed as HIV-positive in South Korea (2008–2015)

Category

Recent HIV infection

Acute HIV infection

N (%)*

Single logistic regression, OR (95% C.I.)

Multiple logistic regression, AOR (95% C.I.)

N (%)§

Single logistic regression, OR (95% C.I.)

Multiple logistic regression, AOR (95% C.I.)

Total

1210 (20.5)

  

562 (9.5)

  

Sex

Male

1140 (21.1)

1.63 (1.25–2.11)

1.35 (1.03–1.78)

539 (10.0)

2.28 (1.49–3.50)

1.67 (1.07–2.62)

Female

70 (14.1)

1

1

23 ( 4.6)

1

1

Age, years

< 20

62 (35.0)

4.18 (2.75–6.36)

4.48 (2.91–6.91)

16 ( 9.0)

1.94 (1.00–3.77)

2.25 (1.13–4.50)

20–29

503 (33.9)

3.99 (2.94–5.40)

4.13 (3.02–5.64)

234 (15.8)

3.67 (2.36–5.71)

4.45 (2.82–7.03)

30–39

279 (18.8)

1.80 (1.31–2.45)

1.82 (1.32–2.49)

142 ( 9.6)

2.07 (1.32–3.26)

2.12 (1.33–3.38)

40–49

192 (14.2)

1.28 (0.93–1.77)

1.22 (0.88–1.69)

89 ( 6.6)

1.38 (0.86–2.20)

1.26 (0.78–2.03)

50–59

120 (13.0)

1.16 (0.82–1.63)

1.11 (0.79–1.57)

58 ( 6.3)

1.31 (0.80–2.15)

1.17 (0.70–1.94)

60 ≤ 

54 (11.4)

1

1

23 ( 4.9)

1

1

Nationality

Koreans

1,144 (21.1)

1.71 (1.31–2.23)

1.56 (1.17–2.08)

552 (10.2)

5.41 (2.87–10.17)

3.66 (1.89–7.06)

Non-Koreans

66 (13.6)

1

1

10 ( 2.1)

1

1

Testing site

Hospitals

918 (19.8)

1

1

485 (10.4)

1

1

PHCs

259 (22.7)

1.20 (1.02–1.38)

1.02 (0.85–1.24)

75 ( 6.6)

0.60 (0.47–0.78)

0.50 (0.37–0.68)

Blood center

33 (28.7)

1.64 (1.08–2.46)

1.00 (0.65–1.54)

2 ( 1.7)

0.15 (0.04–0.62)

0.16 (0.04–0.66)

Region

Metro

770 (18.4)

1

1

300 (7.2)

1

1

Small

440 (25.6)

1.40 (1.22–1.60)

1.61 (1.40–1.85)

262 (15.3)

1.96 (1.64–2.34)

2.45 (2.04–2.95)

Reason for testing

Health check-up

139 (19.9)

1

1

48 (6.9)

1

1

Due to disease

435 (25.6)

1.39 (1.12–1.72)

1.79 (1.50–2.14)

299 (17.6)

2.90 (2.11–3.98)

2.89 (2.06–4.04)

Suspected

199 (23.7)

1.26 (0.98–1.65)

1.24 (0.98–1.56)

86 (10.3)

1.55 (1.08–2.25)

1.40 (1.13–2.56)

Preoperative test

134 (17.2)

0.84 (0.65–1.09)

0.96 (0.73–1.27)

68 (8.8)

1.30 (0.89–1.94)

1.19 (0.80–1.78)

Others

303 (16.1)

0.78 (0.62–0.97)

0.97 (0.78–1.23)

61 (3.2)

0.46 (0.31–0.67)

0.56 (0.38–0.84)

  1. *Proportion of recent HIV infection among specimen for recent HIV testing.
  2. §Proportion of acute HIV infection among specimen for recent HIV testing.
  3. PHCs public health centers, metro metropolis, small smaller city or rural area, others prenatal check-up, blood donation, partner of HIV positive, sexual transmitted infection risk group, etc., OR odds ratio, AOR adjusted (sex, age, nationality, testing site, region, reason for testing) odds ratio.
  4. Age median (IQR, Q1–Q3) of individuals with recent HIV infection: 31 (24–43), age median of individuals with acute HIV infection: 32 (25–42).
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