Table III.

The proportion of participants who felt subjective anxiety after the exposure to the assigned brochures by age group.

	Male					Female
	No. of events/total no. (%)		P values		P values	No. of events/total no. (%)		P values		P values
	Intervention	Control 1		Control 2		Intervention	Control 1		Control 2
Overall	79/242 (32.6)	43/242 (17.8)	<0.001	35/242 (14.5)	<0.001	122/243 (50.2)	64/243 (26.3)	<0.001	34/243 (14.0)	<0.001
Age group
20–24	9/42 (21.4)	9/40 (22.5)	0.91	5/39 (12.8)	0.31	13/43 (30.2)	14/41 (34.1)	0.70	8/45 (17.8)	0.17
25–29	18/58 (31.0)	12/62 (19.4)	0.14	9/58 (15.5)	0.048	35/68 (51.5)	14/72 (19.4)	<0.001	10/65 (15.4)	<0.001
30–34	26/62 (41.9)	11/60 (18.3)	0.005	13/65 (20.0)	0.007	31/52 (59.6)	10/50 (20.0)	<0.001	8/53 (15.1)	<0.001
35–39	26/80 (32.5)	11/80 (13.8)	0.005	8/80 (10.0)	0.001	43/80 (53.8)	26/80 (32.5)	0.007	8/80 (10.0)	<0.001

P-values compare the preceding control group with the intervention group using χ² tests.