Table 2

χ² tests for demographics, drugs, and STIs by means of meeting sexual partners, August 2011—January 2013 (n=7184)

Demographic category	n				%
Demographic category	Total	In person only	Internet and In person	Any GSN app	In person only	Internet and in person	Any GSN app
Age group	p<0.0001
<20	153	35	50	68	1.4	2.3	2.6
20–24	1201	366	315	520	15.1	14.5	20.1
25–29	1756	608	449	699	25.1	20.7	27.0
30–39	2211	727	624	860	30.0	28.7	33.2
40–49	1321	460	495	366	19.0	22.8	14.1
50+	542	227	239	76	9.4	11.0	2.9
Race/ethnicity	p<0.0001
Caucasian	3564	1073	1125	1366	44.3	51.8	52.8
Black/African–American	478	206	141	131	8.5	6.5	5.1
Hispanic	2248	899	626	723	37.1	28.8	27.9
Asian/PI	675	180	219	276	7.4	10.1	10.7
Other	215	63	60	92	2.6	2.8	3.6
Refused/declined	4	2	1	1	0.1	0.0	0.0
Education	p<0.0001
8th grade or below	80	50	12	18	2.1	0.6	0.7
Some high school	112	57	29	26	2.4	1.3	1.0
High school graduate/GED	848	351	254	243	14.5	11.7	9.4
Some college	1874	636	560	678	26.2	25.8	26.2
College graduate	3552	1140	1060	1352	47.0	48.8	52.2
Post-graduate study/degree	718	189	257	272	7.8	11.8	10.5
Ecstasy use	p=0.0002
Yes	657	216	161	280	8.9	7.4	10.8
No	6524	2206	2010	2308	91.0	92.5	89.1
Refused/declined	3	1	1	1	0.0	0.0	0.0
Meth use	p<0.0001
Yes	525	139	226	160	5.7	10.4	6.2
No	6653	2282	1944	2427	94.2	89.5	93.7
Refused/declined	6	2	2	2	0.1	0.1	0.1
Nitrate use	p<0.0001
Yes	1289	327	420	542	13.5	19.3	20.9
No	5892	2096	1751	2045	86.5	80.6	79.0
Refused/declined	3	0	1	2	0.0	0.0	0.1
Cocaine use	p<0.0001
Yes	855	302	177	376	12.5	8.1	14.5
No	6326	2120	1995	2211	87.5	91.9	85.4
Refused/declined	3	1	0	2	0.0	0.0	0.1
Gonorrhoea infection	p<0.0001
Yes	922	290	232	400	12.0	10.7	15.4
No	5445	1822	1677	1946	75.2	77.2	75.2
Refused/declined	817	311	263	243	12.8	12.1	9.4
Chlamydia infection	p=0.001
Yes	783	224	227	332	9.2	10.5	12.8
No	5563	1879	1679	2005	77.5	77.3	77.4
Refused/declined	838	320	266	252	13.2	12.2	9.7
Syphilis infection	p=0.24
Yes	95	28	36	31	1.2	1.7	1.2
No	6198	2057	1852	2289	84.9	85.3	88.4
Refused/declined	891	338	284	269	13.9	13.1	10.4
HIV infection	p=0.04
Yes	171	69	54	48	2.8	2.5	1.9
No	6413	2119	1932	2362	87.5	89.0	91.2
Refused/declined	600	235	186	179	9.7	8.6	6.9
Total	7184	2423	2172	2589	100.0	100.0	100.0