Table 1.
Population characteristics at baseline and by clustering status
| Total | Non-clustering | Clustering | Odds Ratio | 95% Interval | Confidence | P-value | |
|---|---|---|---|---|---|---|---|
|
| |||||||
| N | 6,088 | 4,403 (72.3) | 1,685 (27.7) | ||||
|
| |||||||
| Age in years, median (IQR) | 32 (25–41) | 33 (27–42) | 29 (24–37) | <0.0001# | |||
|
| |||||||
| Sex, n (%) | |||||||
| - Male | 4,261 (70.0) | 2,999 (68.1) | 1,449 (74.0) | 1 | |||
| - Female | 1,778 (29.2) | 1,364 (31.0) | 498 (25.4) | 0.76 | 0.67–0.85 | <0.0001 | |
| - NA | 49 (0.8) | 40 (0.9) | 12 (0.6) | 0.62 | 0.32–1.19 | 0.15 | |
|
| |||||||
| Origin, n (%) | |||||||
| - Mexico | 2,483 (40.7) | 1,799 (40.9) | 684 (40.6) | 1 | |||
| - Guatemala | 1,487 (24.4) | 898 (20.4) | 589 (35.0) | 1.73 | 1.51–1.98 | <0.0001 | |
| - Honduras | 1,157 (19.0) | 965 (21.9) | 192 (11.4) | 0.52 | 0.44–0.63 | <0.0001 | |
| - Panama | 504 (8.3) | 419 (9.5) | 85 (5.0) | 0.53 | 0.41–0.68 | <0.0001 | |
| - Nicaragua | 334 (5.5) | 216 (4.9) | 118 (7.0) | 1.44 | 1.13–1.83 | 0.0032 | |
| - Belize | 84 (1.4) | 73 (1.7) | 11 (0.7) | 0.40 | 0.21–0.75 | 0.0046 | |
| - El Salvador | 39 (0.6) | 33 (0.7) | 6 (0.4) | 0.48 | 0.20–1.15 | 0.098 | |
|
| |||||||
| Risk, n (%) | |||||||
| - HTS | 3,439 (56.5) | 2,566 (58.3) | 873 (51.8) | 1 | |||
| - MSM | 2,015 (33.1) | 1,335 (30.3) | 680 (40.4) | 1.50 | 1.33–1.69 | <0.0001 | |
| - PWID* | 85 (1.3) | 68 (1.5) | 17 (1.0) | 0.73 | 0.43–1.26 | 0.26 | |
| - Other/NA | 549 (9.0) | 434 (9.9) | 115 (6.8) | 0.78 | 0.63–0.97 | 0.026 | |
|
| |||||||
| Employment, n (%) | |||||||
| - Employed | 2,761(45.4%) | 1,941 (44.1) | 820 (48.7) | 1 | |||
| - Unemployed | 2,522 (41.4%) | 1,891 (42.9) | 631 (37.4) | 0.79 | 0.70–0.89 | 0.0001 | |
| - Student | 423 (6.9%) | 275 (6.2) | 148 (8.7) | 1.27 | 1.03–1.58 | 0.028 | |
| - Other/NA | 382 (6.3%) | 296 (6.7) | 86 (5.1) | 0.69 | 0.43–0.89 | 0.0038 | |
|
| |||||||
| Marital Status, n (%) | |||||||
| - Married | 1,009 (16.6%) | 747 (17.0) | 262 (15.5) | 1 | |||
| - Single | 3,851 (63.3%) | 2,828 (64.2) | 1,023 (60.7) | 1.03 | 0.88–1.21 | 0.70 | |
| - Domestic Partnership | 1,228 (20.2%) | 828 (18.8) | 400 (23.7) | 1.38 | 1.15–1.66 | 0.0007 | |
|
| |||||||
| CD4 (/mm3), median (IQR) | 239 (91–427) | 220 (79–413) | 279 (122–456) | <0.0001# | |||
|
| |||||||
| HIV RNA levels (Log10 copies/mL), median (IQR) | 4.7 (4.0–5.3) | 4.7 (4.0–5.3) | 4.8 (4.2–5.3) | 0.0004# | |||
|
| |||||||
| Year of sampling, median (IQR) | 2013 (2011–2014) | 2012 (2011–2014) | 2013 (2012–2015) | <0.0001# | |||
#clustering vs. non-clustering. MSM, men who have sex with men; PWID, people who inject drugs; HTS, heterosexual;
*
MSM/PWID were considered in the PWID category. NA, not available.
#
non parametric t-test