Table 1.

Estimation of HIV burden by NACO in people 15–49 years of age in Andhra Pradesh, based on sentinel surveillance data for 2005

Population category	Sentinel surveillance based calculations by NACO*
	2005 population (15–49 years)	HIV prevalence†	Number with HIV
Urban men	6 131 043‡	0.0240	147 145
Urban women	5 881 092‡	0.0200	117 622
Rural men	14 464 583‡	0.0240	347 150
Rural women	14 178 474‡	0.0200	283 569
Urban men with STI	391 343§	0.2280	89 226
Urban women with STI	340 978§	0.1900	64 786
Rural men with STI	972 539§	0.2280	221 739
Rural women with STI	870 077§	0.1900	165 315
Female sex workers	117 635¶	0.1280	15 057
Men who have sex with men	5 082**	0.0645	328
Total	43 352 845	0.0335	1 451 937

*These calculations carried out by NACO.

†HIV prevalence from the sentinel surveillance of 2005 in Andhra Pradesh applied as follows [2,6]: median HIV prevalence of 2% from 23 antenatal sentinel surveillance clinics at medical colleges or district headquarter hospitals (sample 400 at each clinic, range of HIV prevalence 0.25–3.5%) applied to urban and rural women 15–49 years old, and 20% higher prevalence than this applied to urban and rural men; median HIV prevalence of 22.8% from 11 STI sentinel surveillance clinics mostly at medical colleges or district headquarter hospitals (sample 250 at 10 clinics and 219 at one clinic, range of HIV prevalence 4–32.4%) applied to urban and rural men assumed to get STI annually, and 83.3% of this prevalence applied to urban and rural women assumed to get STI annually; median HIV prevalence of 12.8% from seven sentinel surveillance sites for female sex workers (sample 250 each, range of HIV prevalence 5.2–26.8%); HIV prevalence of 6.45% from one sentinel surveillance site for men who have sex with men (sample 217); the total HIV prevalence of 3.35% in people 15–49 years of age calculated by dividing the total number calculated to have HIV by the total population in this age group.

‡Excludes men and women shown separately in other categories below.

§In this method, 6% urban men and women and 6.3% rural men and women were assumed to get STI annually; this portion was assumed to cover high-risk groups in the population, excluding female sex workers and men who have sex with men, shown separately [3,6].

¶0.55% of urban and rural women 15–49 years of age, comprising that portion of female sex workers not expected to be covered in the STI component of the calculations [6].

**Number of men who have sex with men estimated in Andhra Pradesh who were not expected to be covered in the STI component of the calculations.