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Table 4 Key baseline characteristics for patients according to the groups formed by applying the stratification algorithm in the ATLAS cohort dataset. Figures are frequencies (proportions) unless otherwise specified

From: Subgrouping patients with sciatica in primary care for matched care pathways: development of a subgrouping algorithm

  Group 1 (n = 52) STarT Back low risk Group 2 (n = 266) Combination of up to 3 clinical characteristics and STarT Back medium risk or up to 2 clinical characteristics and STarT Back high risk Group 3 (n = 111) Combination of at least 3 clinical characteristics and STarT Back high risk or 4 clinical characteristics and STarT Back medium risk
Characteristics
 Age (years) (mean, (SDa)) 52.5 (13.44) 49.5 (13.6) 51.0 (15.0)
 Gender (F) 55.7 (29) 61.6 (164) 60.4 (67)
 Low back pain intensity (mean, (SD)) 2.5 (2.4) 5.5 (2.4) 7.0 (2.3)
 Leg pain intensity (mean, (SD)) 3.5 (2.6) 5.2 (2.7) 8.0 (1.9)
 Leg pain worse than back pain 65.4 (34) 52.6 (140) 60.3 (67)
 Disability (RMDQb) (mean, (SD)) 5.7 (3.4) 12.6 (5.0) 17.3 (4.4)
 Pain below knee 66.0 (33) 70.2 (179) 94.5 (104)
Duration of leg pain:
 less than 6 weeks 52.0 (26) 45.7 (116) 37.3 (41)
 between 6 weeks to 3 months 24.0 (12) 21.7 (55) 21.8 (24)
 over 3 months 24.0 (12) 32.7 (83) 41.0 (45)
 HADsc depression score (mean, (SD)) 2.8 (2.4) 6.1 (3.6) 8.6 (4.3)
 PSEQd (mean, (SD)) 48.9 (8.8) 34.5 (13.0) 22.8 (13.0)
Neurological examination findings:
 Myotomal weakness (any) 13.5 (7) 21.8 (58) 33.3 (37)
 Reflex deficit (any) 15.4 (8) 23.3 (62) 32.4 (36)
 Sensory deficit (any) 44.2 (23) 41.0 (109) 78.4 (87)
Neural tension tests:
 any positive 63.5 (33) 74.9 (199) 72.1 (80)
  1. aSD: standard deviation
  2. bRoland Morris Disability Questionnaire
  3. cHospital Anxiety and Depression scale
  4. dPain self-efficacy Questionnaire