Table 2

Relationship between long-term conditions and all-cause mortality in participants with and without self-reported rheumatoid arthritis (RA) using age-adjusted multivariate Cox’s proportional hazards regression analysis

Risk of all-cause mortality
Comorbidity status (reference: no RA and no other long-term conditions)Adjusted for sex and Townsend score HR (95% CI)Adjusted for sex, Townsend score, alcohol status and smoking status HR (95% CI)Adjusted for sex, Townsend score, alcohol status, smoking status, BMI and physical activity HR (95% CI)Adjusted for sex, Townsend score, alcohol status, smoking status, BMI, physical activity and rheumatoid factor status HR (95% CI)Number of deaths (%)
No other long-term conditionsRA1.84 (1.42 to 2.38)1.72 (1.32 to 2.2)1.59 (1.21 to 2.08)1.39 (1.05 to 1.84)58 (4.2%)
1 other long-term conditionNo RA1.45 (1.39 to 1.51)1.42 (1.36 to 1.48)1.40 (1.34 to 1.47)1.39 (1.33 to 1.46)5785 (3.6%)
RA2.01 (1.64 to 2.48)1.88 (1.53 to 2.32)1.72 (1.38 to 2.14)1.44 (1.14 to 1.81)91 (5.4%)
2–3 other long-term conditionsNo RA2.03 (1.95 to 2.11)1.92 (1.84 to 2.00)1.84 (1.77 to 1.92)1.83 (1.75 to 1.91)7914 (5.9%)
RA3.32 (2.87 to 3.84)2.99 (2.59 to 3.46)2.79 (2.40 to 3.24)2.48 (2.12 to 2.90)194 (10.0%)
≥4 other long-term conditionsNo RA3.39 (3.22 to 3.57)3.04 (2.88 to 3.20)2.71 (2.56 to 2.86)2.69 (2.54 to 2.85)2605 (10.8%)
RA4.68 (3.80 to 5.78)3.95 (3.19 to 4.89)3.52 (2.81 to 4.40)3.30 (2.61 to 4.16)90 (14.4%)
  • Unless otherwise shown, Cox’s proportional hazards p<0.01.

  • BMI, body mass index.