Skip to main content

Table 3 Patient encounter characteristics for total combined adult encounter sample, for patients aged ≥65 and < 65 years at the encounter level

From: The profile of older adults seeking chiropractic care: a secondary analysis

  Total encounters
(n = 6781)
Encounters with ≥65 years patients
(n = 1067)
Encounters with < 65 years patients
(n = 5714)
Comparison* between
≥65 years and < 65 years
Source
 COAST 3842 (56.7%) 491 (46.0%) 3351 (58.7%)2 χ2 = 11.9 df = 1 p = 0.0006
 O-COAST 2939 (43.3%) 576 (54.0%) ,363 (41.4%)  
Duration of Encounter (minutes)
 Mean (Range; SD; Median) 17.6 (0–120; 11.2) 18.0 (1–120; 11.2) 17.5 (0–120; 11.2) t = 0.83 df = 90 p = 0.41
Imaging ordered/done at encounter
 X-ray spine 196 (2.9%) 38 (3.6%) 158 (2.8%) χ2 = 0.55 df = 1 p = 0.46
 X-ray other 19 (0.3%) 3 (0.3%) 16 (0.3%) χ2 = 0.0 df = 1 p = 0.99
 MRI 19 (0.3%) 1 (0.1%) 18 (0.3%) χ2 = 2.12 df = 1 p = 0.15
 CT Scan 14 (0.2%) 2 (0.2%) 12 (0.2%) χ2 = 0.01 df = 1 p = 0.91
 Ultrasound 7 (0.1%) 1 (0.1%) 6 (0.1%) χ2 = 0.01 df = 1 p = 0.92
Source of payment
 Workers’ Comp 115 (1.8%) 7 (0.7%) 108 (2.0%) χ2 = 8.09 df = 1 p = 0.0045
 Auto Insurance 102 (1.6%) 10 (1.0%) 92 (1.7%) χ2 = 0.66 df = 1 p = 0.42
 Veterans’ Affairs 46 (0.7%) 24 (2.3%) 22 (0.4%) χ2 = 29.81 df = 1 p < 0.0001
 Medicare 82 (2.2%) 28 (6.0%) 54 (1.7%) χ2 = 43.88 df = 1 p < 0.0001
 Private Insurance 2687 (40.8%) 314 (30.4%) 2373 (42.8%) χ2 = 18.11 df = 1 p < 0.0001
 Patient 5080 (77.2%) 813 (78.7%) 4267 (76.9%) χ2 = 0.52 df = 1 p = 0.47
 No Charge 229 (3.5%) 32 (3.1%) 197 (3.6%) χ2 = 0.20 df = 1 p = 0.66
 Other Charge 6 (0.6%) 6 (0.6%) 39 (0.7%) χ2 = 0.32 df = 1 p = 0.57
  1. *Pearson χ2 test for categorical variables, t-test for means, all accounting for clustering within primary sampling unit of chiropractor