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 |