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Table 1 Prevalence of risk behaviors in the nationwide online survey and Guangzhou sentinel surveillance data, 2014

From: Identifying high risk subgroups of MSM: a latent class analysis using two samples

  Nationwide online survey (N = 582) Guangzhou Sentinel Surveillance (N = 604)
% (95% CI)a % (95% CI)a
Demographics
 Age Under 24 37.8% (34–41.8%) 26.8% (23.4–30.5%)
25 or older 62.2% (58.2–66.1%) 73.2% (69.5–76.6%)
 Education Less than high school 18.6% (15.6–21.9%) 25.3% (22–29%)
High school or more 81.4% (78.1–84.4%) 74.7% (71.1–78%)
 Marital status Married 10.5% (8.3–13.2%) 12.1% (9.7–14.9%)
Not married 89.5% (86.8–91.8%) 87.9% (85.1–90.3%)
 Income <3000RMB a month 46.4% (42.4–50.5%) 31.8% (28.2–35.6%)
≥3000RMB a month 53.6% (49.6–57.6%) 68.2% (64.4–71.8%)
Behaviors
 Identify as gayb Yes 78.2% (74.6–81.3%) 73.3% (69.7–76.7%)
No 21.8% (18.7–25.4%) 26.7% (23.3–30.3%)
 Main sex partner seeking venue Online 85.9% (82.9–88.5%) 86.9% (83.9–89.3%)
Not online 14.1% (11.5–17.2%) 13.1% (10.7–16.1%)
Missing 0.0 0.3% (0.1–1.2%)
 Sexual position Usually insertive 61.5% (57.5–65.4%) 66.2% (62.3–69.8%)
Usually receptive 38.5% (34.6–42.5%) 33.8% (30.2–37.7%)
Missing 0.0 0.7% (0.2–1.7%)
 First age of anal sex with another man < 20 years old 45.4% (41.4–49.5%) 31.4% (27.5–35.6%)
≥20 years old 54.6% (50.4–58.5%) 68.6% (64.8–72.2%)
Missing 0.0 16.2% (13.5–19.4%)
 Any UAI in the past 6 months Yes 59.6% (55.6–63.5%) 61.8% (57.8–65.5%)
No 40.4% (36.5–44.4%) 38.3% (34.5–42.2%)
 Any group sex in past 6 months/yearc Yes 12.4% (9.9–15.3%) 3.8% (2.5–5.9%)
No 87.6% (84.7–90.1%) 96.2% (94.3–97.4%)
Missing 0% (0–0%) 13.7% (11.2–16.7%)
 Any drug use in the 6 months/yearc Yes 28.4% (24.8–32.1%) 25.3% (22–29%)
No 71.7% (67.9–75.2%) 74.7% (71.1–78%)
  1. aWald (normal approximation) confidence intervals for proportions were calculated with an alpha level of 5%. For variables with cell counts < 5 Clopper-Pearson confidence intervals were calculated
  2. b Self-reported as “gay,” as opposed to “bisexual,” “straight,” or “other”
  3. c Nationwide survey: within the past year; Guangzhou sentinel surveillance data: within the past 6 months