Table 2:

Factors associated with cluster membership and size

	Membership in a Cluster			Cluster Size 2–3		Cluster Size>3
	OR	95% CI		OR	95% CI	OR	95% CI
Age
>25	Reference			Reference
20–25	2.04	0.76–6.21		2.15	0.89–5.17^	1.85	0.29–11.66
16–19	1.85	0.16–22.03		2.30	0.20–26.20	1.38	0.08–25.40
Gender Identity
Both Male and Female	Reference			Reference
Male	3.42	1.08–10.78*		17.28	2.93–102.12*	1.84	0.49–6.87
Transgender Women	1.71	0.36–6.80		5.22	0.17–159.89	1.48	0.50–4.38
Education
Less than High School	Reference			Reference
Above High School	1.24	0.32–4.83		0.34	0.08–1.51	23.84	2.66–213.49*
Religion
Muslim or Atheist	Reference			Reference
Christianity	1.46	0.41–6.89		2.14	0.61–7.46	1.00	0.17–5.84
Occupation
Unemployed	Reference			Reference
Employed	1.14	0.49–4.09		0.71	0.18–2.89	3.41	1.89–10.70*
Sexual Orientation
Gay	Reference			Reference
Bisexual	1.31	0.96–1.79^		1.87	0.74–4.68	1.02	0.40–2.55
Female Partner
Have Female Partner	Reference			Reference
No Female Partner	3.66	1.97–6.80*		3.17	1.89–5.32*	4.67	2.05–10.64*
log10 Viral Load	1.72	1.04–2.86*		2.08	1.08–4.02*	1.46	0.80–2.66
CD4
>=500	Reference			Reference
350–449	1.21	0.57–2.57		0.84	0.25–2.84	1.82	0.53–6.31
201–349	1.31	0.66–2.60		0.78	0.19–3.13	2.35	0.84–6.54
<=200	0.85	0.27–2.61		0.72	0.10–5.00	0.99	0.40–2.42
Site
Abuja	Reference			Reference
Lagos	0.59	0.29–1.18		0.58	0.25–1.34	0.59	0.26–1.35

^*p < 0.05

^{^}p < 0.1 for trend