Table 3.

Comparative analysis of prevalence proportions in different age groups (adults only), with the 16–19 years as the reference group

Adults age	participants			IP			IPP			IPP-ratio
Adults age	a	95%	CI	n_inj	95%	CI	n_inj /a	95%	CI	IPP/IPP	95%	CI
16–19	197	170	224	76	63	89	0,39	0,32	0,45	1
20–29	467	428	506	138	119	157	0,30	0,25	0,34	0,76	0,60	0,95
30–39	410	373	447	114	96	132	0,28	0,23	0,32	0,71	0,58	0,88
40–49	494	454	534	124	105	143	0,25	0,21	0,29	0,64	0,52	0,80
50–59	465	426	504	97	80	114	0,21	0,17	0,25	0,53	0,42	0,68
60–69	425	388	462	49	36	62	0,12	0,08	0,15	0,30	0,22	0,41
70+	426	389	463	23	14	32	0,05	0,03	0,08	0,14	0,09	0,22

Participation, “a” number of participants

IP injury prevalence, “n_inj” number of injuries

IPP injury prevalence proportion in different activities of adults, n_inj/a the proportion

IPP-ratio prevalence proportion-ratio, IPP/IPP the ratio between injury proportions

CI confidence interval