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. 2020 Sep 24;8(9):e19579. doi: 10.2196/19579

Table 1.

Participants’ characteristics by HIV serostatus (N=103).

Participant characteristics HIV+ (n=67) HIV− (n=36) t value or chi-square P value
Demographic variables


Age (years), mean (SD) 59.3 (6.3) 59.2 (6.7) 0.0 .99


Sex (male), n (%) 53 (79) 20 (56) 6.3 .01

Race or ethnicity, n (%) N/Aa N/A 1.3 .73


Non-Hispanic White 42 (63) 23 (64)



African American 16 (24) 6 (17)



Hispanic 4 (10) 6 (17)



Other 2 (3) 1 (3)


Education (years), mean (SD) 13.9 (2.4) 15.0 (2.5) −2.1 .04

Employedb, n (%) 20 (31) 14 (40) 0.9 .35

Household incomec (US$), n (%) N/A N/A FETd .002


<10,000 12 (18) 6 (17)



10,000-34,999 45 (68) 13 (36)



35,000-74,999 4 (6) 8 (22)



≥75,000 5 (8) 9 (25)


Live alone, n (%) 38 (57) 11 (31) 6.6 .01

Smartphone ownership, n (%) 60 (90) 30 (83) 0.8 .36
Psychiatric comorbidities, n (%)


LTe MDDf 48 (72) 9 (25) 20.6 <.001


Current MDDg,h 11 (16) 1 (3) FET .05


LT any substance use disorder 45 (67) 17 (47) 3.9 .04


Current substance use disorderh,i 2 (3) 1 (3) FET .99
In-person neurocognitive functioning


GDSj impairedc, n (%) 18 (27) 7 (20) 0.59 .44


Global SSc,k, mean (SD) 9.2 (2.0) 9.9 (1.8) −1.6 .11


Verbal SSc, mean (SD) 10.2 (2.7) 11.4 (2.8) −2.0 .05


Executive functioning SSc, mean (SD) 8.9 (2.5) 9.8 (2.0) −1.7 .10


Speed of information processing SSc, mean (SD) 9.6 (2.4) 10.4 (2.5) −1.4 .16


Learning SSc, mean (SD) 8.3 (2.3) 9.1 (2.3) −1.8 .07


Recall SSc, mean (SD) 8.6 (2.2) 9.3 (2.4) −1.5 .14


Working memory SSc, mean (SD) 9.8 (2.9) 10.3 (2.8) −0.8 .42


Motor SSc, mean (SD) 7.8 (2.7) 8.0 (2.4) −0.4 .69


Premorbid verbal IQh,l, mean (SD) 102 (14) 106 (16) −1.2 .24
HIV characteristics


AIDSm, n (%) 46 (70) N/A N/A N/A


Current CD4m, median (IQR) 703 (550-893) N/A N/A N/A


Nadir CD4m, median (IQR) 148 (33-285) N/A N/A N/A


Duration of HIV infection (years), median (IQR) 23.8 (15.7-28.8) N/A N/A N/A


On antiretroviral therapy, n (%) 63 (94) N/A N/A N/A


Undetectable viral loadn, n (%) 60 (97) N/A N/A N/A

aN/A: not applicable.

bn=100.

cn=102.

dFET: Fisher exact test.

eLT: lifetime.

fLT MDD: met criteria for major depressive disorder at any point in life.

gCurrent MDD: currently meets criteria for major depressive disorder.

hn=101.

iAll current substance use disorders were marijuana use disorder.

jGDS: global deficit score.

kSS: scaled score; scaled score is based on comprehensive in-laboratory neuropsychological testing (scale score: mean 10, SD 3).

lPremorbid Verbal IQ was estimated using the Wide Range Achievement Test, fourth edition Reading Subtest.

mn=66.

nn=62.