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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: Drug Alcohol Depend. 2016 Oct 27;169:171–179. doi: 10.1016/j.drugalcdep.2016.10.027

Table 1.

Sample Characteristics by Gender and Partner Gender

Demographics: MSW Only MSM WSM WSW Total
n=1908 n=1400 n=1492 n=212 n=5012
n % n % n % N % n %
Race/Ethnicity χ2(9) = 757.78 p < .001
 Hispanic 167 8.8 409 29.2 156 10.5 34 16.0 766 15.3
 Black 1076 56.4 225 16.1 873 58.5 85 40.1 2259 45.1
 White 539 28.2 602 43.0 368 24.6 83 39.2 1592 31.7
 Other 126 6.6 164 11.7 95 6.4 10 4.7 395 7.9
Education χ2(6) = 329.78 p < .001
 < High School 322 16.9 70 5.0 216 14.5 28 13.2 636 12.7
 High School 623 32.7 204 14.6 424 28.4 43 20.3 1294 25.8
 > High School 963 50.5 1126 80.4 852 57.1 141 66.5 3082 61.5
Marital Status1 χ2(6) = 119.01 p < .001
 Married or Partnered 271 14.2 221 15.8 175 11.8 30 14.2 697 13.9
 Divorced/Sep./Wid. 298 15.6 60 4.3 221 14.9 24 11.3 603 12.1
 Single 1338 70.2 1117 80.0 1092 73.4 158 74.5 3705 74.0
Income Category2 χ2(4) = 566.49 p < .001
 $0–$5,000 767 41.0 271 19.7 674 46.5 85 40.7 1797 36.7
 $5,001–$20,000 661 35.3 416 30.3 550 37.9 88 42.1 1715 35.0
 $20.001–40,000 286 15.3 330 24.0 162 11.2 26 12.4 804 16.4
 $40,001 and up 157 8.4 356 25.9 64 4.41 10 4.78 587 12.0
Age [Mean | SD]3 34.2 (12.1) 31.0 (10.0) 30.4 (10.6) 28.8 (8.0) 32.0 (11.1)
Unprotected Partners [Mean I SE]4 1.6 (0.1) 3.26 (0.1) 1.6 (0.1) 2.0 (0.2) 2.1 (0.04)
Unprotected Sex Acts [Mean I SE]4 25.7 (1.2) 16.8 (0.9) 24.7 (1.29) 36.3 (5.0) 23.3 (0.7)
Sexually Transmitted Infections5 Each p < .001
 Self-Report prior 6 Months 354/1908 18.6 332/1399 23.7 409/1491 27.4 45/212 21.2 1140/5010 22.8
 Prevalent 718/1874 38.3 504/1292 39.0 829/1455 57.0 90/210 42.9 2141/4831 44.3
 Incident 93/1518 6.1 174/1134 15.3 194/1245 15.6 15/174 8.62 476/4071 11.7
Substance Use6: n=1901 n=1392 n=1469 n=211 n=4973
 Any Drug Use 1137 59.8 765 55.0 726 49.4 153 72.5 2781 55.9
 Any Drug excl. Marijuana 531 27.9 487 35.0 349 23.7 99 46.9 1466 29.4
 Heroin 28 1.5 15 1.1 22 1.5 8 3.8 73 1.5
 Crack Cocaine 156 8.2 45 3.2 106 7.2 26 12.3 333 6.7
 Powder Cocaine 164 8.6 198 14.2 101 6.9 31 14.7 494 9.9
 Amphetamines 39 2.1 118 8.5 29 2.0 10 4.7 196 3.9
 Ecstasy 117 6.2 179 12.9 87 5.9 36 17.1 419 8.4
 Hallucinogens 58 3.1 78 5.6 30 2.0 25 11.9 191 3.8
 Ketamine 13 0.7 40 2.9 9 0.6 8 3.8 70 1.4
 GHB 4 0.2 91 6.5 4 0.3 5 2.4 104 2.1
 Inhalants 7 0.4 253 18.2 3 0.2 4 1.9 267 5.4
 Pain Pills 110 5.8 100 7.2 74 5.0 34 16.1 318 6.4
 Tranquilizers 46 2.4 65 4.7 54 3.7 21 10.0 186 3.7
 PCP 4 0.2 3 0.2 2 0.1 5 2.4 14 0.3
Substance Use Severity:
 Current Injectors (0–6 mos)7 107/1908 5.6 86/1398 6.2 87/1491 5.8 25/212 11.8 305/5009 6.1
 Alcohol Problem Severity χ2(6) = 103.07 p < .001
  Moderate 445/1898 23.5 358/1391 25.7 463/1484 31.2 99/212 46.7 1396/4985 27.4
  Substantial 274/1898 14.4 160/1391 11.5 106/1484 7.1 26/212 12.3 566/4985 11.4
 Drug Use Severity χ2(6) = 67.13 p < .001
  Moderate 340/1884 18.1 203/1371 14.8 148/1453 10.2 32/211 15.2 723/4919 14.7
  Substantial 211/1884 11.2 113/1371 8.2 156/1453 10.7 40/211 19 520/4919 10.6
 Substance Use Treatment: χ2(6) = 69.90 p < .001
  AA/NA Only 103/1907 5.4 52/1397 3.7 50/1490 3.4 7/212 3.3 212/5006 4.2
  Professional Treatment8 225/1906 11.8 66/1397 4.7 176/1490 11.8 27/212 12.7 494/5006 9.9
1

Sample sizes vary due to missing data: MSW N=1907, MSM N=1398, WSM N=1488, WSW N=212

2

Sample sizes vary due to missing data: MSW N=1871, MSM N=1373, WSM N=1450, WSW N=209

3

F(3,5008)=46.65, p<.001

4

Estimates are from a negative binomial model and the appropriate measure of dispersion is the standard error. Unprotected Sex Acts: χ2(3)=52.42, p<.001, Unprotected Partners χ2(3)=290.68, p<.001

5

Self-Report: χ2(3) =38.75, Prevalent: χ2(3) = 136.78, Incident: χ2(3) = 80.02, Repeated: χ2(2) = 107.43

6

All substance use comparisons are significant with p<.001

7

χ2(3) = 13.01, p<.005

8

May also participate in AA/NA