Table 2 Demographic data and clinical characteristics between two groups.

Average age (year)

61.16 ± 6.88

59.41 ± 5.41

0.25^a

Gender (male, %)

32 (97.0)

30 (90.9)

0.29^b

Years of education (n[%])

0.41^b

 Primary school and below

1 (3.0)

3 (9)

–

 Junior school

20 (60.6)

17 (51.5)

–

 Senior school

10 (30.3)

8 (24.2)

–

 Undergraduate and above

2 (6.0)

5 (15.1)

–

MMSE score

22.26 ± 2.98

26.55 ± 1.30

0.002^a

IHDS score

7.12 ± 1.82

9.27 ± 1.06

0.003^a

PSQI score

8.03 ± 3.68

7.40 ± 3.03

0.44^a

SAS score

41.88 ± 7.26

40.15 ± 8.06

0.36^a

HIV-infected related variables

 Time since HIV diagnosis (years)

5.58 (3.42–7.75)

5.43 (3.39–7.93)

0.83^c

 Duration of ART (years)

4.89 (3.16–7.34)

5.29 (3.09–7.41)

0.94^c

 AIDS (v.s. HIV, n[%])

13 (39.4)

10 (33.3)

0.47^b

 Nadir CD4 count, cells/μL

160 (72–279)

156 (57–255)

0.48^c

 Current CD4 count, cells/μL

453 (306–640)

432 (333–620)

0.75^c