Characteristic 0. Negative
N = 854
1
1. Positive
N = 37
1
p-value2
How old are you? 23.0 [20.0; 27.0] 29.0 [25.0; 32.0] <0.001
Age (years groups)

<0.001
    <25 Yrs 518 (61%) 9 (24%)
    25–29 Yrs 212 (25%) 11 (30%)
    30–34 Yrs 78 (9.1%) 11 (30%)
    35–44 Yrs 33 (3.9%) 6 (16%)
    >=45 Yrs 13 (1.5%) 0 (0%)
Education (n = 870)

<0.001
    Never attended school 26 (3.1%) 3 (8.6%)
    Primary level 112 (13%) 14 (40%)
    Lower secondary 214 (26%) 8 (23%)
    Secondary 273 (33%) 3 (8.6%)
    University & higher 210 (25%) 7 (20%)
Current Residence

0.022
    Phnom Penh 295 (35%) 18 (49%)
    Battambang 142 (17%) 3 (8.1%)
    Banteay Meanchey 115 (13%) 3 (8.1%)
    Siem Reap 104 (12%) 10 (27%)
    Kampong Cham 98 (11%) 1 (2.7%)
    Preah Sihanouk 61 (7.1%) 2 (5.4%)
    Other 39 (4.6%) 0 (0%)
Are you currently married?

0.4
    1. Yes, married and living together 46 (5.4%) 2 (5.4%)
    2. Yes, married but not living together 21 (2.5%) 1 (2.7%)
    3. Widowed, divorced, or seperated 19 (2.2%) 2 (5.4%)
    4. Not married and not living with any partner 369 (43%) 18 (49%)
    5. Not married but living with sweetheart (female) 49 (5.7%) 4 (11%)
    6. Not married but living with male lover 350 (41%) 10 (27%)
Alcohol use in the past 3 months

0.011
    Never 271 (32%) 14 (39%)
    Daily drink alcohol 108 (13%) 10 (28%)
    Ever drink alcohol 458 (55%) 12 (33%)
Drug use (n = 870) 73 (40%) 9 (53%) 0.5
1 Median [Q1; Q3]; n (%)
2 Welch Two Sample t-test; Pearson’s Chi-squared test