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. Author manuscript; available in PMC: 2022 Mar 1.
Published in final edited form as: Drug Alcohol Depend. 2021 Jan 9;220:108516. doi: 10.1016/j.drugalcdep.2021.108516

Table 1.

Socio-Demographic Characteristics of MACS participants by HIV status at index visit.

HIV Negative
(n=1620)
HIV Positive
(n=1948)
All Participants
(N=3568)
Follow-up (six months), median (IQR) 11 (1 - 14) 12 (1 - 15) 11 (1 - 14)
 
Age, median (IQR), years 44.4 (38.5 - 51.2) 41.1 (35.7 - 46.3) 42.5 (36.7 - 48.5)
 
Income in US Dollar, median (IQR) 10-19.9K (<10K – 40-49.9K) 20-29.9K (<10K - 40-49.9K) 20-29.9K (<10K - 40-49.9K)
 
Race/ethnicity, n (%)
  Non-Hispanic white 1209 (74.6) 1210 (62.2) 2419 (67.8)
  Non-Hispanic black 331 (20.4) 574 (29.5) 905 (25.4)
  American Indian or Alaskan Native 28 (1.7) 77 (3.9) 105 (2.9)
  Asian 11 (0.7) 9 (0.5) 20 (0.6)
  Hispanic 135 (8.3) 285 (14.6) 420 (11.8)
  Native Hawaiian or Pacific Islander 2 (0.1) 2 (0.1) 4 (0.1)
  Other 12 (0.7) 23 (1.2) 35 (0.9)
  Multi-racial 27 (1.7) 51 (2.6) 78 (2.29)
   
Education Level, n (%)
  12th Grade or Less 170 (29.7) 329 (36.3) 499 (33.8)
  Some College 149 (26.5) 294 (32.5) 443 (29.9)
  Four Year Degree 117 (20.5) 143 (15.8) 260 (17.6)
  Some Graduate Work 45 (7.9) 52 (5.7) 97 (6.6)
  Post-Graduate Degree 91 (15.9) 88 (9.7) 179 (12.1)
 
Location, n (%)
  Baltimore 150 (22.49) 143 (30.6) 293 (25.8)
  Chicago 49 (7.3) 107 (22.9) 156 (13.7)
  Pittsburgh 111 (16.6) 77 (16.5) 188 (16.5)
  Los Angeles 360 (53.7) 141 (30.1) 501 (44.0)
 

Note. The index visit was defined as a participant's first visit during the observation period between October, 2004 and April; 2016; IQR: Inter-quartile range.