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. 2011 Aug 17;11:651. doi: 10.1186/1471-2458-11-651

Table 3.

Factors associated with concurrency in past 12 months, among 1668 men who report having had sex in the past 12 months

Any concurrency Concurrency excluding polygyny

n reporting/
N (%)
Unadjusted OR
(95% CI)
n reporting/
N (%)
Unadjusted OR
(95% CI)
SOCIO-DEMOGRAPHIC/ECONOMIC FACTORS
Age (years) P < 0.001 P < 0.001
 < 30 92/537 (17.1%) 1 84/537 (15.6%) 1
 30-39 100/440 (22.7%) 1.42 [1.04, 1.95] 81/440 (18.4%) 1.22 [0.87, 1.70]
 40-49 89/326 (27.3%) 1.82 [1.30, 2.53] 46/326 (14.1%) 0.89 [0.60, 1.31]
 50+ 59/365 (16.2%) 0.93 [0.65, 1.33] 19/365 (5.2%) 0.30 [0.18, 0.50]
Marital status P < 0.001 P = 0.08
 Never married 47/295 (15.9%) 1.17 [0.82, 1.66] 47/295 (15.9%) 1.17 [0.82, 1.66]
 Married with 1 wife 155/1108 (14.0%) 1 155/1108 (14.0%) 1
 Married with > 1 wife 120/143 (83.9%) 32.1 [19.9, 51.7] 10/143 (7.0%) 0.46 [0.24, 0.90]
 Separated/divorced/widowed 18/122 (14.8%) 1.06 [0.63, 1.80] 18/122 (14.8%) 1.06 [0.63, 1.80]
Age at first marriage1 P < 0.01 P = 0.11
 22+ years 146/774 (18.9%) 1 94/774 (12.1%) 1
 < 22 years 141/559 (25.2%) 1.45 [1.12, 1.89] 85/559 (15.2%) 1.30 [0.95, 1.78]
Education level P = 0.04 P = 0.20
 Incomplete primary or less 125/709 (17.6%) 1 87/709 (12.3%) 1
 Primary 103/436 (23.6%) 1.45 [1.08, 1.94] 70/436 (16.1%) 1.37 [0.97, 1.92]
 Junior or above 112/522 (21.5%) 1.28 [0.96, 1.70] 73/522 (14.0%) 1.16 [0.83, 1.62]
SES score tertile P < 0.001 P = 0.002
 Low 51/384 (13.3%) 1 32/384 (8.3%) 1
 Middle 121/571 (21.2%) 1.76 [1.23, 2.51] 86/571 (15.1%) 1.95 [1.27, 2.99]
 High 129/553 (23.3%) 1.99 [1.39, 2.83] 83/553 (15.0%) 1.94 [1.26, 2.99]

SEXUAL BEHAVIOUR
Age at first sex (years)1 P < 0.001 P < 0.001
 18+ years 134/802 (16.7%) 1 89/802 (11.1%) 1
 < 18 years 160/645 (24.8%) 1.64 [1.27, 2.13] 117/645 (18.1%) 1.78 [1.32, 2.39]
Lifetime partners1 P < 0.001 P < 0.001
 < 5 males 64/721 (8.9%) 1 43/721 (6.0%) 1
 5+ males 235/793 (29.6%) 4.32 [3.21, 5.83] 163/793 (20.6%) 4.08 [2.87, 5.81]
 Can't remember 40/147 (27.2%) 3.84 [2.46, 5.99] 23/147 (15.6%) 2.92 [1.70, 5.03]
Condom use with last partner P = 0.82 P = 0.01
 No 296/1444 (20.5%) 1 187/1444 (12.9%) 1
 Yes 43/217 (19.8%) 0.96 [0.67, 1.37] 42/217 (19.0%) 1.61 [1.11, 2.34]
Casual partner in past 12 m P < 0.001 P < 0.001
 No 272/1480 (18.4%) 1 162/1480 (10.9%) 1
 Yes 68/188 (36.2%) 2.52 [1.82, 3.48] 68/188 (36.2%) 4.61 [3.28, 6.47]
Problem drinking P < 0.01 P = 0.001
 No 312/1590 (19.6%) 1 208/1590 (13.1%) 1
 Yes 26/74 (35.1%) 2.22 [1.36, 3.63] 21/74 (28.4%) 2.63 [1.56, 4.45]
HIV serostatus P = 0.22 P = 0.02
 Negative 310/1543 (20.1%) 1 205/1543 (13.3%) 1
 Positive 28/112 (25.0%) 1.33 [0.85, 2.07] 24/112 (21.4%) 1.78 [1.11, 2.86]
Spouse's HIV serostatus2 P = 0.54 P = 0.98
 Negative 276/1049 (26.3%) 1 124/1049 (11.8%) 1
 Positive 25/85 (29.4%) 1.17 [0.72, 1.92] 10/85 (11.8%) 0.99 [0.50, 1.96]

1Cutpoints based on median values in males in the entire cohort (see Table 1)

2Among 1134 wives of 1056 men who had a spouse in the study population