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Table 3 Potential predictive factors of return to work (RTW) at baseline (T1)

From: Chronic low back pain among French healthcare workers and prognostic factors of return to work (RTW): a non-randomized controlled trial

Predictive factors at T1 RTW = No RTW = Yes Total RTW p-value
   N = 27 N = 92 N = 119
Sociodemographic factors
 Age Mean (SD) 42.07 (8.69) 39.83 (9.65) 40.42 (10.19) 0.3177
 Sex (%) Female 37.4 58.70 53.78 0.0472
  Male 62.9 41.3 46.22  
 Conjugal relationship (%) Yes 42.31 44.44 43.97 0.8467
  No 57.69 55.56 56.03  
Pain level
 Duration of pain (months) Mean (SD) 99.48 (87.58) 85.07 (88.93) 84.34 (88.47) 0.2793
 VAS (Visual Analogue Scale 1–10) Mean (SD) 4.34 (2.29) 3.74 (2.23) 3.87 (2.25) 0.2976
 Repetitive Lumbago history Yes 66.67 57.61 59.66 0.3989
  No 33.33 42.39 40.34  
 Recurrent Lombosciatica Yes 48.15 45.65 46.22 0.8191
  No 51.85 54.35 53.78  
 Comorbidity 0 34.62 58.43 53.04 0.0913
 (0 = none; 1 = cardiovascular, others…; 2 = psychiatric) 1 42.31 29.21 32.17  
2 23.08 13.36 14.78  
 Tobacco (packs.years) Mean (SD) 5.90 (11.50) 3.06 (6.39) 3.65 (7.74) 0.3137
Clinical examination data
 Weight (Kg) Mean (SD) 72.37 (16.30) 68.61 (14.39) 69.47 (14.86) 0.2868
 Height (cm) Mean (SD) 170.58 (9.40) 169.33 (9.18) 169.61 (9.20) 0.5218
 Body Mass Index (kg/m2) Mean (SD) 24.96 (5.85) 23.81 (4.20) 24.07 (4.62) 0.4924
 Fingertip-floor distance (cm) Mean (SD) 26.65 (15.63) 17.03 (14.23) 19.15 (15.02) 0.0053
 Schober index (10-cm Schober test) Mean (SD) 2.94 (1.08) 3.22 (1.07) 3.16 (1.07) 0.4908
Occupational factors
 Absenteeism before inclusion (days) Mean (SD) 196 (177) 111 (131) 129 (145) 0.0151
 Work Satisfaction (%) Yes 60.00 80.50 76.50 0.076
  No 40.00 19.50 23.50  
 Occupation (%) HCWs 11.11 56.52 46.22 <0.0001
  No Hcws 88.89 43.48 53.78  
Psychosocial factors and impact of the pain
 FABQ activity Mean (SD) 16.67 (6.04) 14.56 (7.54) 14.96 (7.29) 0.1466
 FABQ work Mean (SD) 30.50 (9.47) 25.97 (12.44) 26.78 (12.04) 0.2795
 QUEBEC scale Mean (SD) 46.73 (17.14) 33.84 (19.40) 36.35 (19.56) 0.0272
 HAD scale anxiety Mean (SD) 10.25 (4.60) 9.00 (4.33) 9.24 (4.38) 0.3724
 HAD scale Depression Mean (SD) 7.69 (4.06) 6.33 (4.09) 6.59 (4.10) 0.1901
 DALLAS Anxiety/Depression Mean (SD) 57.19 (27.63) 37.64 (27.31) 41.32 (28.26) 0.0156
 DALLAS Work and leisure Mean (SD) 68.13 (18.98) 54.71 (24.59) 57.24 (24.12) 0.0610
 DALLAS Daily activities Mean (SD) 66.47 (14.98) 55.33 (20.89) 57.42 (20.31) 0.0644
 DALLAS Sociability Mean (SD) 44.84 (27.33) 29.17 (23.66) 32.12 (24.99) 0.0467
Intervention factors