Table 2. Volumes and yields of routine HIV screening in 6 secondary/tertiary hospitals in Xishuangbanna Prefecture, Yunnan Province, January 2019 to December 2020.

Visit types	Reference period					Implementation period				P value§
	Screening N	Positive N	Positive rate % (95% CI)	P value*		Screening N	Positive N	Positive rate % (95% CI)	P value†
Abbreviation: HIV=human immunodeficiency virus; CI=confidence interval. * P value of Chi-square test compares the positive rate of HIV screening among different hospital tiers in the reference period (January to December 2019). † P value of Chi-square test compares the positive rate of HIV screening among different hospital tiers in the implementation period (January to December 2020). § P value of Chi-square test compares the positive rate of HIV screening for the same hospital tiers between the reference and implementation periods.
Total	157,519	528	0.34 (0.31–0.37)			245,174	748	0.31 (0.29–0.33)		0.097
Departments				<0.001					<0.001
Internal medicine	35,270	128	0.36 (0.30–0.43)			48,318	148	0.31 (0.26–0.36)		0.159
Gynecology and obstetrics	31,377	42	0.13 (0.10–0.18)			40,184	60	0.15 (0.12–0.19)		0.587
Emergency	26,186	119	0.45 (0.38–0.54)			31,349	171	0.55 (0.47–0.64)		0.125
Medical examination	21,179	40	0.19 (0.14–0.26)			64,511	95	0.15 (0.12–0.18)		0.185
Surgery	19,320	52	0.27 (0.21–0.35)			29,250	104	0.36 (0.30–0.44)		0.100
Ophthalmology and otorhinolaryngology	5,944	18	0.30 (0.19–0.47)			6,086	17	0.28 (0.17–0.45)		0.811
Infectious diseases	5,115	54	1.06 (0.81–1.38)			2,070	32	1.55 (1.10–2.18)		0.084
Pediatric	4,536	9	0.20 (0.11–0.38)			3,633	8	0.22 (0.11–0.43)		0.830
Dermatovenereal	3,059	48	1.57 (1.19–2.08)			9,706	87	0.90 (0.73–1.11)		0.002
Traditional Chinese medicine	2,463	2	0.08 (0.02–0.29)			6,315	11	0.17 (0.09–0.31)		0.309
Rehabilitation	1,528	10	0.65 (0.35–1.19)			1,788	8	0.45 (0.23–0.88)		0.419
Other	1,542	6	0.39 (0.18–0.85)			1,964	7	0.36 (0.18–0.74)		0.874