Table 1 Patient demographic and clinical characteristics

Sociodemographic variables

N

54

Sex

Male (54/54)

Age, years [median (IQR)]^a

32.5 (28, 41)

 < 20

0

 20–30

19

 30–40

20

 40–50

10

 > 50

5

 Unknown

4

Marital status [n/total (%)]

 Unmarried

45 (83%)

 Married

6 (11%)

 Divorced

3 (6%)

MSM

54/54

Chinese

54/54

Ethnicity

Han (45/54)

Man (7/54)

Other (2/54)

Clinical

HBV Ag

N/A

4/54

HCV Ab

N/A

1/54

TPPA

N/A

26/54

Fiebig staging

 I–II

–

14

 III–IV

–

16

 V–VI

–

24

Estimated infection day (days) [median (IQR)]^a

− 91 (− 141, − 56)

31 (25, 49)

Methods for estimating infection day (N)

 i. Fiebig stage

N/A

6

 ii. Remembered time of high-risk exposure

N/A

24

 iii. Laboratory HIV antibody detection

N/A

24

 Follow-up (days) [median (IQR)]^a

N/A

1719 (1142, 2625)

CD4⁺T-cell count (cells/μL) [median (IQR)]^a

Chemokine detection sampling point

N/A

424 (328, 531)

Set-point

N/A

488 (390, 634)

One-year-infection point^b

N/A

412 (328, 555)

Viral load (copies/mL) [median (IQR)]^a

Chemokines detection sampling point

N/A

78,500 (11,370, 753,000)

Set-point

N/A

24,900 (8450, 83,050)

One-year-infection point^b

N/A

22,887 (8482.5, 36,600)

Viral subtype [N/total]

–

CRF-01AE (53/54)

CRF-01AE/BC (1/54)