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Table 1 Characteristics of study participants

From: Effect of a low-intensity, self-management lifestyle intervention on knee pain in community-based young to middle-aged rural women: a cluster randomised controlled trial

Baseline characteristics Interventiona
(n = 277)
Controla
(n = 248)
P valuec Interventionb
(n = 206)
Controlb
(n = 184)
P valuec
Age, years 40.0 (6.1) 39.0 (7.1) 0.11 40.7 (5.7) 39.4 (6.8) 0.04
Body mass index, kg/m2 28.5 (6.1) 28.1 (6.7) 0.50 28.4 (6.3) 27.2 (5.8) 0.06
Employment, n (%)    0.64    0.49
 Full-time paid work 52 (19.0) 41 (16.7)   38 (18.5) 27 (14.8)  
 Part time/casual work 144 (52.6) 139 (56.5)   110 (53.7) 108 (59.0)
 No paid work 78 (28.5) 66 (26.8)   57 (27.8) 48 (26.2)
Education, n (%)    0.20    0.05
 No post school qualification 42 (15.3) 50 (20.3)   29 (14.2) 38 (20.8)  
 Certificate/diploma/apprenticeship 127 (46.2) 116 (47.2)   80 (39.2) 81 (44.3)
 Bachelor degree or higher 106 (38.6) 80 (32.5)   95 (46.6) 64 (35.0)
WOMAC pain, median (range) 0 (0–20) 0 (0–15) 0.77 0 (0–20) 0 (0–15) 0.76
Any self-reported knee paind, n (%) 98 (35.4) 85 (34.3) 0.79 67 (32.5) 64 (34.8) 0.64
  1. Data presented as mean (standard deviation), median (range), or n (%)
  2. aWomen with complete data at baseline for age, body mass index, town cluster, and WOMAC
  3. bWomen with complete data for age, body mass index, town cluster, and WOMAC at baseline, and WOMAC at 1 year
  4. cDifferences between intervention and control groups using independent samples t-test, chi squared test, or Mann-Whitney U test where appropriate
  5. dDefined as baseline WOMAC pain score (range 0–20) ≥ 1