Table 3.
Describing latent classes
| Variables | Full sample | Model with 39-items | Model with 16 items | ||||
|---|---|---|---|---|---|---|---|
| Class 1 | Class 2 | OR (95% CI)a | Class 1 | Class 2 | OR (95% CI)a | ||
| Sex (% female vs. male) | 60.7 | 66.0 | 58.5 | 1.38 (1.09–1.74) | 59.2 | 64.7 | 1.26 (0.97–1.65) |
| Age (mean (SD) in years) | 56.7 (15.9) | 61.9 (15.6) | 54.6 (16.1) | 1.03 (1.02–1.04) | 56.5 (17.0) | 56.7 (16.9) | 1.00 (0.99–1.01) |
| Taking medications | |||||||
| % None (referent) | 22.3 | 5.4 | 28.9 | 12.7 | 25.8 | ||
| % 1 medication | 23.5 | 13.7 | 27.3 | 2.66 (1.59–4.49) | 20.5 | 24.6 | 1.70 (1.08–2.67) |
| % 2 medications | 54.2 | 80.9 | 43.8 | 9.83 (6.19–15.6) | 66.8 | 49.6 | 2.75 (1.87–4.06) |
| Hospitalized during past year (% yes)b | 27.6 | 32.9 | 15.7 | 2.63 (2.02–3.41) | 26.3 | 18.5 | 1.58 (1.18–2.10) |
| Treatment for rheumatoid arthritis (% yes)b | 28.3 | 50.5 | 19.2 | 4.29 (3.38–5.45) | 32.5 | 26.4 | 1.34 (1.03–1.76) |
| Treatment for osteo-arthritis (% yes)b | 38.2 | 56.7 | 28.8 | 3.23 (2.56–4.07) | 47.2 | 32.8 | 1.83 (1.42–2.36) |
| Has another health condition (% yes)b, c | 74.0 | 86.9 | 73.6 | 2.39 (1.75–3.26) | 84.7 | 71.2 | 2.25 (1.38–3.68) |
| Self-reported health during past 4 weeks (% “fair or poor”)d | 24.0 | 41.5 | 17.2 | 3.43 (2.67–4.40) | 38.6 | 18.8 | 2.72 (2.07–3.56) |
a OR unadjusted odds ratios based on binary logistic regressions with pseudo-class draws (referent = class 2), CI 95% confidence intervals
bReferent = no
cReports having one or more of the following conditions: heart disease, high blood pressure, lung disease, diabetes, ulcer or stomach disease, kidney disease, liver disease, anemia or blood disease, cancer, depression, back pain, other medical problem
dReferent = good, very good, or excellent