Table 2. Regression Analysis of self-reported physician-diagnosed arthritis on the Physical Composite Scale (PCS); (N=839).
| Variables | Model 1 | Model 2 | Model 3 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| b | (SE) | P-value | b | (SE) | P-value | b | (SE) | P-value | |
| Arthritis | -7.58 | (0.79) | <.0001 | -6.80 | (0.78) | <.0001 | -5.74 | (0.83) | <.0001 |
| Age (years) | -0.28 | (0.08) | <.001 | -0.34 | (0.12) | <.0001 | |||
| Sex (Female) | -3.77 | (0.86) | <.0001 | -2.58 | (0.93) | <.01 | |||
| Education | 0.34 | (0.09) | <.001 | 0.32 | (0.15) | <.001 | |||
| Married | -0.02 | (0.85) | 0.98 | 0.23 | (0.87) | 0.77 | |||
| BMI | -0.17 | (0.15) | 0.03 | ||||||
| Hypertension | -0.15 | (0.84) | 0.85 | ||||||
| Diabetes | -2.31 | (0.82) | <.01 | ||||||
| Heart attack | -3.69 | (1.01) | <.001 | ||||||
| Osteoporosis | -4.84 | (0.92) | <.0001 | ||||||
| Stroke | -2.31 | (1.16) | 0.04 | ||||||
| R2 | 0.09 | 0.14 | 0.21 | ||||||
b = parameter estimate, SE = standard error, BMI = body mass index
Model 1 included only arthritis
Model 2, included age, gender, education, and marital status along with arthritis
Model 3, included medical conditions (hypertension, diabetes, heart attack, osteoporosis, and stroke) along with variables in Model 2