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Table 2 Baseline health-related information for the full cohort, and for those with complete and incomplete follow-up

From: Prediction of healthcare utilization following an episode of physical therapy for musculoskeletal pain

Variable Label Full cohort at baseline (n = 440) Completed follow-up (n = 246) Did not complete follow-up (n = 194) p-value a
Health-related information
 Anatomical region Neck 98 (22.3%) 48 (19.5%) 50 (25.8%) 0.27
Low Back 118 (26.8%) 66 (26.8%) 52 (26.8%)  
Shoulder 107 (24.3%) 59 (24.0%) 48 (24.7%)  
Knee 117 (26.6%) 73 (29.7%) 44 (22.7%)  
 Symptom onset Gradual 239 (54.3%) 146 (59.3%) 93 (47.9%) 0.03
Sudden 138 (31.4%) 65 (26.4%) 73 (37.6%)  
Traumatic 63 (14.3%) 35 (14.2%) 28 (14.4%)  
 Duration of symptoms urgery for condition Mean ± SD 398.58 ± 1715.80 379.79 ± 1999.77 423.01 ± 1259.33 0.80
Median (min, max) 90 (0–29565) 90 (1–29565) 90 (0–10000)  
Yes 83 (18.9%) 44 (17.9%) 39 (20.1%) 0.56
No 357 (81.1%) 202 (82.1%) 155 (79.9%)  
 Work-related injury (32 missing) Yes 63 (14.3%) 30 (12.2%) 33 (17.0%) 0.36
No 345 (78.4%) 198 (80.5%) 147 (75.8%)  
 Chronicity Acute 101 (23.0%) 65 (26.4%) 36 (18.6%) 0.05
Chronic 324 (73.6%) 173 (70.3%) 151 (77.8%)
 Pain Intensity Mean ± SD 4.22 ± 1.98 3.94 ± 1.72 4.58 ± 2.21 0.01
Median (min, max) 4 (0–9.67) 4 (0–8) 4.5 (0–9.7)
 Disability Mean ± SD 0 ± 1.0 −0.06 ± .97 0.08 ± 1.03 0.16
Median (min, max) −0.16 (−2.41–3.14) −0.23 (−2.21–2.94) −0.01 (−2.41–3.14)
 CCI Mean ± SD 0.66 ± 1.47 0.68 ± 1.62 0.63 ± 1.25 0.76
Median (min, max) 0 (0–13) 0 (0–13) 0 (0–8)
  1. CCI Charlson comorbidity index
  2. a Group comparisons with independent samples t-tests for continuous variables and chi-square tests for categorical variables