Table 1.

Distribution of demographic and sexual behavior characteristics of 624 Mexican soldiers with baseline-only evaluation and 336 with baseline and 1-year follow-up

CharacteristicsBaseline-only cohort (%; n = 694)Follow-up cohort (%; n = 336)P
Age (y)
    <20107 (15.4)107 (31.9)<0.01
    20-25394 (56.8)125 (37.2)
    >25187 (27.0)104 (30.9)
    Missing6 (0.01)0 (0.0)
Education >6 y121 (15.1)80 (23.8)0.34
Religion
    Catholic521 (66.7)232 (69.7)0.72
    Other69 (8.08)29 (8.6)
    None181 (22.4)72 (21.6)
    Missing28 (2.81)3 (0.01)
Marital status
    Single/separated/widower406 (58.5)213 (61.9)0.13
    Married/cohabitating288 (41.5)123 (38.1)
High SES289 (36.2)132 (39.3)0.8
Smoker
    Never106 (15.3)57 (17.0)0.64
    Former313 (45.1)148 (44.0)
    Current269 (38.8)131 (39.0)
    Missing6 (0.9)0 (0.0)
Circumcised (self-reported)52 (7.5)44 (13.1)0.02
    Missing74 (10.7)0 (0.0)
Age at first intercourse17 (3)17 (3)0.78
No. sexual relations before age 20 y3 (3)3 (2)0.07
Lifetime partners
    <3352 (50.7)118 (35.1)0.32
    3-5176 (25.4)108 (32.1)
    >5166 (23.9)110 (32.7)
Contact with prostitutes202 (29.1)122 (36.3)0.02
Condom use with prostitutes
    Always239 (34.4)126 (37.5)0.84
    Sometimes28 (4.0)14 (4.2)
    Rarely or never8 (1.2)13 (3.9)
    Missing406 (58.5)183 (54.5)
History of anal intercourse with males27 (4.0)15 (4.5)<0.01
History of STDs107 (15.4)29 (8.6)<0.01
    Missing11 (1.59)0 (0.0)
Condiloma acuminata on physical exam27 (3.9)33 (9.82)<0.01
Genital hygiene after intercourse
    Always584 (84.1)279 (83.0)0.31
    Sometimes74 (10.7)32 (9.5)
    Rarely or never33 (4.8)24 (7.1)
    Missing3 (4.0)1 (0.003)