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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: AIDS Care. 2019 Mar 20;31(10):1228–1233. doi: 10.1080/09540121.2019.1595523

Table 1.

Baseline demographic variables by stimulant use and condomless anal sex with multiple partners (CAS-MP) among a cohort of men who have sex with men using PrEP (n=283)

Stimulant use1 CAS-MP
No (n=187)
n (%)
Yes (n=96)
n (%)
P value2 No (n=111)
n (%)
Yes (n=172)
n (%)
P value2
Age 0.15 0.01
 Less than 26 20 (10.7) 17 (17.7) 21 (18.9) 16 (9.3)
 Between 26-35 81 (43.3) 44 (45.8) 53 (47.7) 72 (41.9)
 Between 36-45 52 (27.8) 18 (18.8) 18 (16.2) 52 (30.2)
 46 or Older 34 (18.2) 17 (17.7) 19 (17.1) 32 (18.6)
Race/ethnicity 0.13 0.21
 White 93 (49.7) 52 (54.2) 49 (44.1) 96 (55.8)
 Hispanic or Latino 58 (31.) 20 (20.8) 35 (31.5) 43 (25.0)
 Black or African-American 17 (9.1) 12 (12.5) 14 (12.6) 15 (8.7)
 Asian/Pacific Islander 8 (4.3) 9 (9.4) 9 (8.1) 8 (4.7)
 Other 11 (5.9) 3 (3.1) 4 (3.6) 10 (5.8)
Education 0.45 0.94
 High School or Less 22 (11.8) 10 (10.4) 14 (12.6) 18 (10.5)
 Some College 63 (33.7) 33 (34.4) 38 (34.2) 58 (33.7)
 Bachelors 62 (33.2) 39 (40.6) 38 (34.2) 63 (36.6)
 Graduate 40 (21.4) 14 (14.6) 21 (18.9) 33 (19.2)
Family income 0.10 0.34
 $20,000 or Less 48 (25.7) 36 (37.5) 37 (33.3) 47 (27.3)
 Between $20,000 and $50,000 74 (39.6) 35 (36.5) 44 (39.6) 65 (37.8)
 More than $50,000 65 (34.8) 25 (26.0) 30 (27.0) 60 (34.9)
Enrollment site 0.29 <0.01
 Los Angeles LGBT Center 161 (86.1) 78 (81.3) 102 (91.9) 137 (79.7)
 Oasis 26 (13.9) 18 (18.8)   9 (8.1) 35 (20.3)  
1

Stimulant use defined as any use of methamphetamine, ecstasy, or cocaine in the preceding 30 days.

2

Significance level determined at a p value of less than 0.05. Chi-square was used for categorical variables.