Table 3.
Public | Private | ||
---|---|---|---|
Difference, days (95% CI) | Difference, days (95% CI) | ||
Univariable analysis | Matched sample #1 | 0.91 (0.01 to 1.81) | 0.35 (-0.67 to 1.37) |
Matched sample #2 | 0.68 (-0.20 to 1.56) | 0.47 (-0.55 to 1.49) | |
Matched sample #3 | 1.30 (0.47 to 2.13) | 0.79 (-0.19 to 1.77) | |
Matched sample #4 | 1.00 (0.11 to 1.89) | 0.29 (-0.70 to 1.28) | |
Matched sample #5 | 1.13 (0.28 to 1.98) | 0.03 (-1.07 to 1.13) | |
Multivariable analysis | Whole population | 1.56 (1.14 to 1.98) | 0.69 (0.22 to 1.16) |
Legend: Matched samples of arthritis patients with anemia and without anemia were identified based on five confounders: Sample #1 - gender (male, female); Sample #2 - age (0–59, 60–69, 70–79, 80+); Sample #3 - type of primary diagnosis of arthritis; Sample #4 - type of secondary/associated diagnosis of arthritis; Sample #5 - number of associated diagnoses/comorbidities (none, 1–2, 3–4, 5–6, 6+).