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. 2015 Apr 17;1(1):e3. doi: 10.2196/publichealth.4314

Table 4.

Substance using behaviors of MSM participants in the American Men's Internet Survey, United States, 2013.




Substance use behaviors in the past 12 months
Participant characteristics n in sample Used illicit drug Binge drank alcohol
n (%) P valuea n (%) P valuea
HIV-positive overall 1113 436 (39.17) <.001b 618 (55.53) .681b

Race/Ethnicity








Black, non-Hispanic 63 27 (42.86) .722 42 (66.67) .434


Hispanic 162 68 (41.98) .529 102 (62.96) .981


White, non-Hispanic 810 304 (37.53) REF 430 (53.09) REF


Other or multiple races 78 37 (47.44) .210 44 (56.41) .435

Age (years)








18-24 90 37 (41.11) .360 66 (73.33) .195


25-29 124 67 (54.03) .007 100 (80.65) <.001


30-39 201 94 (46.77) .404 132 (65.67) .502


40 or older 698 238 (34.10) REF 320 (45.85) REF

NHBS city resident








Yes 311 131 (42.12) .050 163 (52.41) .625


No 802 305 (38.03) REF 455 (56.73) REF

Recruitment website type








Gay social networking 50 15 (30.00) .309 18 (36.00) .025


General gay interest 155 57 (36.77) .809 78 (50.32) .271


General social networking 439 159 (36.22) REF 227 (51.71) REF


Geospatial social networking 469 205 (43.71) .121 295 (62.90) .131
HIV-negative or unknown overall 9264 2487 (26.85) REF 5398 (58.27) REF

Race/Ethnicity








Black, non-Hispanic 291 75 (25.77) .075 165 (56.70) .007


Hispanic 922 275 (29.83) .960 612 (66.38) .007


White, non-Hispanic 7266 1912 (26.31) REF 4187 (57.62) REF


Other or multiple races 785 225 (28.66) .336 434 (55.29) .018

Age (years)








18-24 1892 686 (36.26) <.001 1349 (71.30) <.001


25-29 1391 452 (32.49) .006 1069 (76.85) <.001


30-39 1717 521 (30.34) .466 1143 (66.57) .326


40 or older 4264 828 (19.42) REF 1837 (43.08) REF

NHBS c city resident








Yes 2957 828 (28.00) .002 1788 (60.47) <.001


No 6307 1659 (26.30) REF 3610 (57.24) REF

Recruitment website type








Gay social networking 752 118 (15.69) <.001 339 (45.08) <.001


General gay interest 1803 474 (26.29) .176 1033 (57.29) .773


General social networking 4897 1255 (25.63) REF 2773 (56.63) REF


Geospatial social networking 1812 640 (35.32) <.001 1253 (69.15) <.001

a Wald chi-square from multivariable logistic regression comparing behavior (yes versus no) among group with some characteristic compared to a referent (REF) group.

b Wald chi-square from multivariable logistic regression comparing behavior (yes versus no) among HIV-positive participants compared to HIV-negative or unknown serostatus particiants. Model controlled for race/ethnicity, age, NHBS residency, and website type.

c NHBS = National HIV Behavioral Surveillance System