Table 1.

Demographic and Risk Variables by Recruitment Strategy, MSM Screened in Office, Philadelphia, 2010–2013.

	Outreach	Online	p-value	WBMC	Craigslist	Facebook	GRINDR

	N = 64	N = 232		N = 18	N = 46	N = 109	N = 59

*Demographics*
Age, mean¹	32.2	29.4	0.03	32.0	29.8	28.4	30.3
Age, median¹	30.5	27.0	0.02	31.5	26.0	26.0	27.0
Race, N (%)²^,³
Black/Hispanic	17 (29%)	75 (34%)	0.46	2 (12%)	22 (50%)	34 (33%)	17 (30%)
White	41 (71%)	143 (66%)		14 (88%)	22 (50%)	68 (67%)	39 (70%)
*Risk Behaviors*
Number of Sex Partners in Last 6	5.95	4.21	0.09	4.88	4.11	3.30	5.73

Months, Mean Number of Sex Partners in Last 6 Months, Median⁴	3.0	3.0	0.24	3.0	3.0	2.0	4.0
Multiple Sex Partners in Last 6 Months⁵	55 (89%)	182 (80%)	0.11	15 (88%)	35 (78%)	77 (72%)	55 (93%)
Number of Sex Partners	2.79	1.46	0.06	1.12	1.13	1.22	2.29

Did Not Use Condoms, Mean Number of Sex Partners	1.0	1.0	0.54	1.0	1.0	1.0	1.0

Did not use Condoms, Median
Multiple Sex Partners Did not use Condoms	21 (33%)	66 (30%)	0.59	6 (35%)	11 (24%)	31 (30%)	18 (33%)

Mean and median age of screeners differed significantly between Facebook and Outreach (p = 0.01 for both mean and median).

Note: Ns do not add up to recruitment strategy totals because “Other” category was not included in descriptive analyses.

Minority (black and Hispanic) screeners were significantly more likely to be recruited from Craigslist than: WBMC (p = 0.01), GRINDR (p = 0.05) and Outreach (p = 0.03).

⁴

Median number of sex partners in last 6 months differed significantly between: WBMC and Facebook (p = 0.05); Facebook and GRINDR (p = 0.0001); and Facebook and Outreach (p = 0.01).

⁵

Report of multiple sex partners in last 6 months differed significantly between: Facebook and GRINDR (p = 0.001); Craigslist and GRINDR (p = 0.02); and Facebook and Outreach (p = 0.01).

NOTE: Percentages may not add up to 100% due to missing values.