Table 6 |
|||
| Correlates† of treatment approaches among Caucasian Americans with radiographic-confirmed knee osteoarthritis (N = 2075) | |||
| CAM Only | Conventional Medication Only | Both | |
| (N = 502) | (N = 303) | (N = 493) | |
| Odds ratios (95% confidence intervals) | |||
| Age ≥ 65 years | 1.07 (0.82–1.38) | 0.98 (0.72–1.34) | 1.10 (0.83–1.45) |
| Women | 1.67 (1.30–2.15) | 1.54 (1.14–2.08) | 2.36 (1.79–3.11) |
| Education | |||
| ≥ Some college | 1.81 (1.23–2.67) | 0.89 (0.60–1.32) | 1.25 (0.85–1.83) |
| ≤High school or less | 1.0 | 1.0 | 1.0 |
| Income ($) | |||
| >100,000 | 0.86 (0.61–1.22) | 1.15 (0.76–1.75) | 1.47 (1.02–2.12) |
| 50,000–100,000 | 0.83 (0.62–1.11) | 0.97 (0.68–1.37) | 0.97 (0.70–1.33) |
| ≤ 50,000 | 1.0 | 1.0 | 1.0 |
| KOOS Pain‡ | 1.09 (0.90–1.33) | 0.78 (0.63–0.97) | 0.75 (0.62–0.91) |
| KOOS Quality of Life‡ | 0.69 (0.57–0.83) | 0.87 (0.69–1.09) | 0.59 (0.48–0.73) |
| Kellgren-Lawrence grade: | 1.62 (1.18–2.24) | 1.45 (1.00–2.11) | 1.90 (1.37–2.65) |
| 4 versus 2 or 3 | |||
| Symptom-related multi-joint osteoarthritis | 1.43 (1.11–1.85) | 1.67 (1.21–2.30) | 2.43 (1.79–3.29) |
| History of knee injury/surgery | 1.40 (1.09–1.81) | 1.27 (0.93–1.72) | 1.06 (0.80–1.39) |
| SF-12 Physical Health Score‡ | 0.98 (0.84–1.15) | 0.68 (0.57–0.81) | 0.75 (0.64–0.88) |
| Obesity | 1.14 (0.89–1.47) | 0.78 (0.58–1.05) | 1.10 (0.84–1.44) |
† Reference group includes participants who did not report use of CAM or conventional medications for osteoarthritis treatment.
‡ Odds ratios are per one standard deviation change in SF-12 Physical Health Score (SD = 8.7) and KOOS subscales of Pain (SD = 18.1) and Quality of life (SD = 22.1).
Yang et al. BMC Complementary and Alternative Medicine 2012 12:86 doi:10.1186/1472-6882-12-86
