Total (N=144) Not Grindr-Met Partner (N=62) Grindr-Met Partner (N=82)    
Variable N (%) N (%) N (%) Χ2 or t p
How would you describe your last sexual partner?          
 Life partner/boyfriendb 25 (17.5) 21 (33.4) 4 (4.9) 21.17 <0.001
 Casual sex partner 118 (82.6) 40 (65.6) 78 (95.1)    
When was last sexual encounter?          
 Within the last week 83 (57.6) 34 (54.8) 49 (59.8) 0.39 0.82
 Within the last month 34 (23.6) 16 (25.8) 18 (22.0)    
 More than 1 month ago 27 (18.8) 12 (19.4) 15 (18.3)    
The last time you had sex were either you or your partner under the influence of drugs or alcohol?c 46 (33.8) 18 (31.6) 28 (35.4) 0.22 0.64
The last time you had sex, what kinds of sex did you have?          
 Anal sex, with a condom 75 (52.1) 26 (41.9) 49 (59.8) 4.49 0.03
 Anal sex, no condoms/bareback 39 (27.1) 20 (32.3) 19 (23.2) 1.48 0.22
 Oral sex, with a condom 7 (4.9) 3 (4.8) 4 (4.9) 0.000 0.99
 Oral sex, no condom 109 (75.7) 48 (77.4) 61 (74.4) 0.18 0.68
 No penetration and no oral sexd 4 (2.8) 0 (0.0) 4 (4.9)
Mean number of lifetime male anal sex partners (SD) 38.5 (98.8) 25.5 (29.4) 37.7 (73.2) -1.37 0.17
Mean number of recent (past 30 day) male anal sex partners (SD) 2.3 (3.3) 1.9 (2.6) 2.6 (3.8) -1.29 0.20
Mean number of recent (past 30 day) sex partners met on Grindr (SD) 1.9 (2.9) 1.1 (2.9) 2.4 (2.8) -2.75 0.01
a Three cases missing on whether last sex was from Grindr b Two responses options of life partner and boyfriend were collapsed into one for analysis purposes c Reponses listed are “yes” answers; other options were “no” and “I don’t know” d No comparison due to cell size of 0
Table 3: Comparison of Sexual Behaviors by Whether or Not Last Sex Partner was Met on Grindr among Those Who Reported Ever Having Sex with Someone Met on Grindr (N=144)a