Table 1.

Characteristics of the patients for both follow-up time points

Variable	3 months, n = 428	12 months, n = 431	Difference between 3-month and 12-month samples (95% CI); p value
Men, n (%)	368 (86%)	364 (84%)	1.5% (−3.2 to 6.3%); p = 0.529
Age, mean (sd)	43 (10.9)	43 (10.5)
Native speakers—French (%)	287 (67%)	270 (63%)	4.4% (−2.0 to 10.8%); p = 0.1758
Higher education (%)	268 (63%)	255 (59%)	3.5% (−3.1 to 10.0%); p = 0.300
Not returned to work at follow-up, n (%)	273 (64%)	229 (53%)	10.7% (4.1 to 17.2%); p = 0.002
Location: lower limb (%)	183 (43%)	182 (42%)	0.5% (−6.1 to 7.1%)
Location: back (%)	89 (21%)	99 (23%)	−2.2% (−7.7 to 3.3%)
Location: upper limb (%)	134 (31%)	132 (31%)	0.6% (−5.5 to 6.9%)
Location: multiple injuries (%)	22 (5%)	18 (4%)	1.0% (−1.9 to 3.8%)

CI confidence interval