Table 2

 Number of deaths, mortality with standardised mortality ratios (SMRs) and SMR ratios using Swedish national data as reference population

VariablesAll (n = 1430)At entry to studySMR ratios (anti-TNF exposed vs. not exposed)
As anti-TNF exposed (n = 921)As not anti-TNF exposed (n = 652)
AllMen (n = 211)Women (n = 710)AllMen (n = 178)Women (n = 474)AllMenWomen
pyrs, person years; SMR, standardised mortality ratio; TNF, tumour necrosis factor.
Results are shown for all subjects and also separately for those anti-TNF exposed and those not exposed by gender. SMRs and SMR ratios are presented with 95% CIs.
Deaths (31 Dec 2004)1885120311374394
Pyrs at risk (31 Dec 2004)707731777262451390010912809
Crude mortality (per 1000 pyrs at risk)26.616.127.512.635.139.433.5
SMRs and SMR ratios (after 2 years of follow-up)1.38 (0.98 to 1.78)1.20 (0.64 to 1.75)1.65 (0.57 to 2.74)0.94 (0.33 to 1.55)1.51 (0.99 to 2.04)1.18 (0.45 to 1.90)1.74 (1.01 to 2.47)0.79 (0.42 to 1.44)1.41 (0.51 to 4.04)0.54 (0.22 to 1.22)
SMRs and SMR ratios (after 3 years of follow-up)1.47 (1.13 to 1.80)1.20 (0.74 to 1.67)1.79 (0.85 to 2.72)0.88 (0.38 to 1.37)1.54 (1.11 to 1.96)1.24 (0.63 to 1.85)1.73 (1.15 to 2.31)0.78 (0.47 to 1.27)1.44 (0.65 to 3.16)0.50 (0.24 to 0.99)
SMRs and SMR ratios (after 4 years of follow-up)1.56 (1.26 to 1.86)1.50 (1.03 to 1.96)1.86 (1.00 to 2.72)1.29 (0.75 to 1.83)1.50 (1.14 to 1.86)1.19 (0.68 to 1.70)1.70 (1.21 to 2.19)1.00 (0.66 to 1.49)1.56 (0.78 to 3.05)0.76 (0.44 to 1.28)