Table 3

Prevalence of recorded diagnosed HIV in primary care (per 100 000 persons) and the estimated proportion of HIV recorded in primary care in 2005 among males and among females by age group

	Age (years)
	<16	16–24	25–34	35–44	45+
Males
Number in SOPHID	631	878	6632	13588	9408
Prevalence of diagnosed HIV (SOPHID) per 100 000 persons	10.61	24.30	168.63	296.76	83.22
Number in GPRD	30	12	107	328	299
Prevalence of HIV recorded in primary care (GPRD) per 100 000 persons	8.39	9.54	61.38	143.94	50.85
95% CI, lower bound	5.66	4.93	50.31	128.78	45.25
95% CI, upper bound	11.98	16.67	74.18	160.39	56.95
% of HIV+ patients whose status is recorded in general practice	79.08%	39.26%	36.40%	48.50%	61.10%
95% CI, lower bound	53.35%	20.29%	29.83%	43.40%	54.37%
95% CI, upper bound	112.89%	68.59%	43.99%	54.05%	68.43%
Females
Number in SOPHID	636	1189	5967	6147	2264
Prevalence of diagnosed HIV (SOPHID) per 100 000 persons	11.25	34.27	150.55	131.72	17.88
Number in GPRD	25	23	108	172	85
Prevalence of HIV recorded in primary care (GPRD) per 100 000 persons	7.53	18.42	60.21	77.51	13.08
95% CI, lower bound	4.87	11.68	49.40	66.36	10.45
95% CI, upper bound	11.11	27.64	72.70	90.00	16.18
% of HIV+ patients whose status is recorded in general practice	66.87%	53.76%	40.00%	58.85%	73.18%
95% CI, lower bound	43.28%	34.08%	32.81%	50.38%	58.46%
95% CI, upper bound	98.72%	80.66%	48.29%	68.33%	90.49%

The denominator used for the prevalence of diagnosed HIV (from SOPHID) was the estimated population mid-year provided by the Office of National Statistics.
The denominator used for the prevalence of HIV recorded (GPRD) was the number of patients registered mid-year.
Due to old geography codes and poor quality of the data in 1995, prevalence by region is not shown for this year.