Variable OI present (N=76) OI absent (N= 263) Odds ratio (95% CI) p-value
Age (years)
≤ 40 (N=173)
> 40 (N=166)
48 (27.7%, 63.2%)
28 (16.9%, 36.8%)
125 (72.3%, 47.5%)
138 (83.1%, 52.5)
1.89 (1.12-3.20)
1.0
0.02
Gender
Female (N= 223)
Male (N= 116)
52 (23.3%, 68.4%)
24 (20.7%, 31.6%)
171 (76.7%, 65.0%)
92 (79.3%, 35.0%)
1.17 (0.68-2.01)
1.0
0.58
Socio-economic class
Lower (N=171)
Upper/Middle (N=168)
46 (26.9%, 60.5%)
30 (17.9%, 39.5%)
125 (73.1%, 47.5%)
138 (82.1%, 52.5%)
1.69 (0.98-2.94)
1.0
0.05
Residence
Rural (N=148)
Urban (N= 191)
38 (25.7%, 50.0%)
38 (19.9%, 50.0%)
110 (74.3%, 41.8%)
153 (80.1%, 58.2%)
1.39 (0.83-2.32)
1.0
0.21
Marital status
Single† (N=138)
Married (N=201)
35 (25.4%, 46.1%)
41 (20.4%, 53.9%)
103 (74.6%, 39.2%)
160 (79.6%, 60.8%)
1.33 (0.79-2.22)
1.0
0.28
Household income
<20,000 (N=186)
≥20,000 (N= 153)
56 (30.1%, 73.7%)
20 (13.1%, 26.3%)
130 (69.9%, 49.4%)
133 (86.9%, 50.6%)
2.86 (1.57-5.25)
1.0
0.0002
People per room
> 2 (N= 98)
≤ 2 (N= 241)
33 (33.7%, 43.4%)
43 (17.8%, 56.6%)
65 (66.3%, 24.7%)
198 (82.2%, 75.3%)
2.34 (1.36-3.98)
1.0
0.002
OI= opportunistic infection; Percentages in bracket are for rows and columns respectively.
†Single in this context refers to those whose marital status is single, separated, divorced or widowed
Table 3: Socio-demographic risk factors for opportunistic infections in patients on HAART (univariate analysis)
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