Table 2.

Baseline characteristics of study participants eligible for primary analysis in the 6-month waitlist and PCHMS groups

Characteristic	Waitlist (%) (n=246)	PCHMS (%) (n=224)	Total (%) (n=470)	p Value
Mean age, years±SD	26.1±9.20	26.3±8.95	26.2±9.07	0.692
Female gender (%)	131 (53.3%)	137 (61.2%)	268 (57.0%)	0.102
University student	162 (65.8%)	154 (68.8%)	316 (80.2%)	0.569
Non-medicine faculty	200 (81.3%)	178 (79.5%)	378 (80.4%)	0.700
Patient at the University Health Service	71 (28.9%)	74 (33.0%)	145 (30.9%)	0.380
Use of social networking websites
Several time a day	128 (52.0%)	115 (51.3%)	243 (51.7%)	0.663
Several time a week	71 (28.9%)	69 (30.8%)	140 (29.8%)
Several time a month	13 (5.3%)	16 (7.1%)	29 (6.2%)
Less often	19 (7.7%)	16 (7.1%)	35 (7.4%)
I do not use social networking websites	15 (6.1%)	8 (3.6%)	23 (4.9%)
Use of the internet to find health-related information
Several times a week	32 (13.0%)	37 (16.5%)	69 (14.7%)	0.490
Few times a month	82 (33.3%)	82 (36.6%)	164 (34.9%)
Less often	114 (46.3%)	91 (40.6%)	205 (43.6%)
Never	18 (7.3%)	14 (6.3%)	32 (6.8%)
Use public transport for work	109 (44.3%)	95 (42.4%)	204 (43.4%)	0.748
Experience cold or ILI symptoms in 2009 or 2010 prior to study
None	29 (7.8%)	24 (6.5%)	53 (7.1%)	0.477
Once or twice	219 (58.9%)	203 (54.9%)	422 (56.9%)
Three to four times	97 (26.1%)	110 (29.7%)	207 (27.9%)
More often	27 (7.3%)	33 (8.9%)	53 (7.1%)
Work face-to-face with patients	67 (18.0%)	67 (18.1%)	134 (18.1%)	0.973
Medications used
Prescription	83 (33.7%)	64 (28.6%)	147 (31.3%)	0.268
Over-the-counter	61 (24.8%)	67 (29.9%)	128 (27.2%)	0.254
Herbals/vitamins	137 (36.8%)	135 (36.5%)	272 (36.7%)	0.148
Visited healthcare professional(s) in past 6 months
None	61 (24.8%)	55 (24.6%)	116 (24.7%)	0.723
Once only	72 (29.3%)	67 (29.9%)	139 (29.6%)
Two to three times	75 (30.5%)	75 (33.5%)	150 (31.9%)
More often	38 (15.4%)	27 (12.1%)	65 (13.8%)