Table 2

Class risk variable proportions from the three-class LCA model among the sample of CAP007 adolescent females with HIV-negative serostatus in 2011 (n=1049)

Risk variable	Overall	Three-class model proportions
Risk variable	Overall	Class 1 ‘No risk’	Class 2 ‘High risk’	Class 3 ‘Low risk’
HSV-2 status
Positive	0.092	0.052	0.234	0.096
Negative	0.908	0.948	0.766	0.904
Contraception
Condom use	0.257	0.064	0.304	0.489
Other contraception	0.194	0.000	0.000	0.511
None	0.548	0.936	0.696	0.000
HIV knowledge
Low	0.087	0.080	0.073	0.100
High	0.913	0.920	0.927	0.900
Prior HIV testing
Yes	0.884	0.883	0.900	0.879
No	0.116	0.117	0.100	0.121
Financial dependence
Yes	0.109	0.110	0.086	0.115
No	0.891	0.890	0.914	0.885
Drug use (past year)
At least once	0.037	0.000	0.137	0.048
Never	0.963	1.000	0.863	0.952
Alcohol use (past year)
At least once	0.154	0.068	0.457	0.158
Never	0.846	0.932	0.543	0.842
Pregnancy (past year)
Yes	0.041	0.014	0.037	0.078
No	0.959	0.986	0.963	0.922
School absence (past year)
Illness	0.304	0.325	0.310	0.276
Illness and other reason	0.200	0.183	0.177	0.231
Other reason	0.169	0.124	0.328	0.170
None	0.327	0.369	0.185	0.323
Perceived HIV risk
High risk	0.074	0.085	0.249	0.000
Low risk	0.380	0.000	0.000	1.000
Not at risk	0.545	0.915	0.751	0.000
Age
≥18	0.278	0.163	0.451	0.366
<18	0.722	0.837	0.549	0.634
n (%)	1049 (100)	547 (52.15)	103 (9.82)	399 (38.04)
HIV status (2012)
Positive		6 (1.10)	3 (2.91)	9 (2.26)
Negative		541 (98.90)	100 (97.09)	390 (97.74)

HSV-2, herpes simplex virus serotype-2; LCA, latent class analysis.