| MuIS group | PaIS group |
---|---|---|
(N = 28 practices, n = 539 patients) | (N = 32 practices, n = 562 patients) | |
Practice characteristics | ||
 Practice size (number of listed patients) | 1883 [IQR 1602 to 3475] | 2086 [IQR 1649 to 3876] |
 Medical outreach visit in 2011 (yes) | 20 (71.4 %) | 22 (68.8 %) |
 Referral rate in 2011 (‰)a | 4.4 [IQR 3.0 to 6.0] | 4.9 [IQR 3.9 to 6.5] |
Patient characteristics | ||
 Age (years)b | 43.8 (11.8) | 42.6 (12.1) |
 Sex (male)b | 282 (52.3 %) | 272 (48.1 %) |
 Education at college level or more (yes)c | 58 (27.2 %) | 53 (21.4 %) |
 Co-morbidity (yes)c | 85 (39.9 %) | 86 (35.5 %) |
 Employed or self-employed (yes)c | 159 (74.0 %) | 187 (75.1 %) |
 Sick leave, LBP-related during the last 2 weeks (yes)c | 100 (56.2 %) | 118 (54.4 %) |
 Roland Morris Disability Questionnaire (0–23 points)c | 14.2 (5.5) | 13.0 (5.8) |
 Back pain intensity (0–10 points)c | 6.2 (2.1) | 6.1 (2.2) |
 EQ VAS (0–100 points)c | 54.4 (22.8) | 55.6 (22.4) |
 STarT Back Tool score (low risk)c | 51 (25.0 %) | 73 (30.8 %) |
 STarT Back Tool score (medium risk)c | 89 (43.6 %) | 87 (36.7 %) |
 STarT Back Tool score (high risk)c | 64 (31.4 %) | 77 (32.5 %) |