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Table 3 Occurrence of VTE within 90 days or more than 90 days after admission for immune-mediated disease.

From: Risk of venous thromboembolism in people admitted to hospital with selected immune-mediated diseases: record-linkage study

Exposure, time between exposure and VTE (days) ORLS1 ORLS2 England
  Obs Exp RR1 (95% CI) Obs Exp RR1 (95% CI) Obs Exp RR1 (95% CI)
MS 0 to 90 10 8.1 1.25 (0.59 to 2.31) 17 6.7 2.64 (1.51 to 4.33) 212 112 1.95 (1.69 to 2.24)
91+ 96 43.7 2.23 (1.80 to 2.74) 71 30.1 2.45 (1.90 to 3.13) 1297 619 2.17 (2.05 to 2.30)
Myxoedema 0 to 90 38 39.8 0.95 (0.66 to 1.32) 126 95.9 1.48 (1.18 to 1.85) 2617 2058 1.48 (1.41 to 1.56)
91+ 160 107 1.52 (1.29 to 1.79) 305 245 1.32 (1.16 to 1.51) 8487 7237 1.26 (1.22 to 1.29)
Psoriasis 0 to 90 12 11.6 1.04 (0.53 to 1.83) 15 6.5 2.41 (1.33 to 4.06) 226 134 1.73 (1.51 to 1.98)
91+ 87 54.2 1.62 (1.29 to 2.00) 38 26.5 1.45 (1.02 to 2.01) 1092 679 1.64 (1.54 to 1.75)
Rheumatoid arthritis: 0 to 90 52 61.7 0.83 (0.61 to 1.10) 50 37.0 1.43 (1.03 to 1.95) 1122 730 1.71 (1.60 to 1.83)
91+ 395 279.8 1.46 (1.31 to 1.62) 231 156 1.60 (1.38 to 1.85) 5703 3626 1.75 (1.70 to 1.81)
SLE 0 to 90 5 1.4 3.64 (1.18 to 8.56) 6 1.8 3.41 (1.24 to 7.75) 111 27.4 4.15 (3.40 to 5.01)
91+ 21 6.5 3.25 (2.01 to 4.98) 29 5.9 5.03 (3.35 to 7.27) 525 148 3.61 (3.31 to 3.94)
  1. 1 Adjusted for sex, age in five-year bands, time-period in single calendar years and district of residence in the ORLS datasets; and for sex, age in five-year bands, time-period in single calendar years, region of residence and deprivation score associated with patients' area of residence, in quintiles, in the England dataset.