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Table 1 Baseline characteristics

From: A multifaceted implementation strategy versus passive implementation of low back pain guidelines in general practice: a cluster randomised controlled trial

  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 %)
  1. Data are presented as the median [IQR], mean (SD), or n (%)
  2. aReferral rate to secondary healthcare is calculated by the total number of listed patients in the practice (including patients without back pain) divided by the number of these patients referred to secondary healthcare with a back diagnosis in 2011
  3. bBaseline data collected by the GP at the initial consultation. Information regarding age and sex was available in 1101 (100 %) patients, representing 54 (90.0 %) of the included practices
  4. cData collected via questionnaires after the initial consultation (n = 475, representing 50 practices). Complete data was available for baseline characteristics for practices. However, completeness for the patient reported measures varied education level (n = 461), co-morbidity (n = 455), employment status (n = 464), sick leave (n = 395), Roland Morris Disability score (n = 406), back pain intensity (n = 457), EQ-5D VAS (n = 466), and STarT Back Tool (n = 441)