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Table 1 Demographic 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
Demographic information
 Age Mean ± SD 45.06 ± 15.82 46.59 ± 16.00 43.15 ± 15.43 0.02
Median (min, max) 45 (18–75) 47 (18–75) 42 (18–74)  
 Sex (1 missing) Male 164 (37.3%) 85 (34.6%) 79 (40.7%) 0.20
Female 275 (62.5%) 160 (65.0%) 115 (59.3%)  
 Race (7 missing) White 343 (78.0%) 200 (81.3%) 143 (73.7%) 0.05
Non-white 90 (20.5%) 42 (17.1%) 48 (24.7%)  
 Ethnicity (33 missing) Hispanic or Latino 31 (7.0%) 20 (8.1%) 11 (5.7%) 0.36
Not Hispanic or Latino 376 (85.5%) 211 (85.8%) 165 (85.1%)  
 Education (6 missing) Less than college graduate 161 (36.6%) 71 (28.9%) 90 (46.4%) < 0.001
College graduate or higher 273 (62.0%) 172 (69.9%) 101 (52.1%)  
 Income (66 missing) $35,000 or less 112 (25.5%) 62 (25.2%) 50 (25.8%) 0.30
$35,000 to $70,000 106 (24.1%) 59 (24.0%) 47 (24.2%)  
Greater than 70,000 156 (35.5%) 99 (40.2%) 57 (29.4%)  
 Insurance (26 missing) Private 273 (62.0%) 156 (63.4%) 117 (60.3%) 0.70
Public 75 (17.0%) 46 (18.7%) 29 (14.9%)  
Other 66 (15.0%) 36 (14.6%) 30 (15.5%)  
 Geographic region Southeast 275 (62.5%) 146 (59.3%) 129 (66.5%) 0.10
Midwest 47 (10.7%) 23 (9.3%) 24 (12.4%)  
West 98 (22.3%) 65 (26.4%) 33 (17.0%)  
Northeast 20 (4.5%) 12 (4.9%) 8 (4.1%)  
  1. a Group comparisons with independent samples t-tests for continuous variables and chi-square tests for categorical variables