Table 1. Characteristics of 59 085 HIV/AIDS cases included in this study.

Variable	n	(%)
Gender
Male	34 337	58.11
Female	24 748	41.89
Age group*
15-29	19 984	33.83
30-39	16 499	27.93
≥ 40	22 594	38.25
Education
Primary/illiterate	19 245	32.57
Junior high	25 560	43.26
Senior high and above	14 280	24.17
Ethnic group
Han	43 506	73.63
Others	15 579	26.37
First CD4 cell count (cells/mm3)
< 200	4 261	7.21
200-349	7 749	13.12
350-499	18 778	31.78
≥ 500	28 297	47.89
Total	59 085	100.00

Note: *There were 8 cases with missing information on age.