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. 2014 Jan 27;9(1):e84979. doi: 10.1371/journal.pone.0084979

Table 3. Factors associated with incident HIV infection among women in Beira, Mozambique.

Bivariable Analysis Multivariable Analysis
Unadjusted HR (95% CI) p-value HR (95% CI) p-value
Age 0.9 (0.8, 1.1) 0.389 0.9 (0.8, 1.1) 0.307
Education
> = Grade 10 1.5 (0.6, 3.5) 0.342 _
<Grade 10 1
Employment
Yes (part-time or full-time) 0.8 (0.3, 2.1) 0.708 _
No 1
Self-identified engagement in transactional sex
Yes 2.4 (0.9, 6.0) 0.073 1.5 (0.5, 4.2) 0.488
No 1 1
More than two sex partners last month
Yes 2.6 (1.1, 6.0) 0.024 1.9 (0.7, 4.9) 0.178
No 1 1
Had new sex partner(s) last month
Yes 2.4 (1.0, 5.6) 0.039 2.0 (0.8, 5.0) 0.136
No 1 1
Sex with IDU, MSM, or engaged in sex work in the last month
Yes 2.8 (0.4, 21.6) 0.321 _
No 1
Frequency of vaginal sex without condom in last 7 days with primary partner 0.9 (0.7, 1.3) 0.651 _
Frequency of vaginal sex without condom in last 7 days with other partner 1.6 (1.1, 2.2) 0.006 1.7 (1.2, 2.5) 0.004
Baseline contraception
Pills/injectables 1.0 (0.3, 3.2) 0.974 1.2 (0.4, 4.0) 0.763
Condoms 2.0 (0.8, 5.3) 0.143 2.1 (0.8, 5.6) 0.129
Other1 12.5 (1.6, 99.1) 0.017 25.3 (2.5, 253.5) 0.006
Nothing 1
Frequency of vaginal cleansing inside the vagina per month
31+ 0.7 (0.1, 5.1) 0.710 _
1–30 0.4 (0.0, 4.5) 0.461
0 1
Frequency of vaginal insertions per month
1+ 1.1 (0.4, 3.1) 0.787 _
0 1
1

Includes hormonal implant (1), IUD (1), and other (8).