Table 2

Incidence of HIV infection and sexually transmitted infections by BMI
At enrolment HIV incidence (6.7 per 100 person year, 95% CI: 6.1-7.4 per 100 person year)
Crude incidence rate per 100 Person Year (95% CI) p-value Unadjusted Hazard Ratio (95% CI) p-value AdjustedHazard R (95% CI) p-value
Body Mass Index (kg/m2) <0.001
Obese1 4.6 (3.8,5.6) 1 1
Overweight2 7.8 (6.7,9.0) 1.70 (1.33,2.17) <0.001 1.36 (1.06,1.75) 0.015
Normal3 8.1 (7.0,9.4) 1.76 (1.38,2.25) <0.001 1.19 (0.92,1.55) 0.185
STI‡‡incidence (15.6 per 100 person year, 95% CI:14.6-16.6 per 100 person year)
Body Mass Index (kg/m2) <0.001
Obese1 10.9 (9.6,12.3) 1 1
Overweight2 16.6 (15.0,18.4) 1.82 (1.55,2.14) <0.001 1.46 (1.22,1.75) <0.001
Normal3 19.8 (17.9,21.9) 1.55 (1.31,1.83) <0.001 1.40 (1.18,1.66) <0.001

P value for log rank test.

Age adjusted.

‡‡Chlamydia trachomatis and gonorrhoea.

1 30+ BMI, 2 (25-<30) BMI, 3 (18.6-<25) BMI.

Wand and Ramjee

Wand and Ramjee BMC Public Health 2013 13:159   doi:10.1186/1471-2458-13-159

Open Data