Table 1

Observed deaths (Obs) and standardised mortality ratios (SMR) among test participants and controls and relative risks (RR) of mortality in test participants compared with controls, for broad causes of death, plus leukaemia and multiple myeloma, over the full follow up period

Test participantsControlsMortality in test participants relative to controls
Cause of deathObsSMRObsSMRRR (90% CI)
*0.001<p<0.01, based on a two sided test.
†p<0.001, based on a two sided test.
‡0.01<p<0.05, based on a two sided test.
All neoplasms154693*164592†1.01 (0.96 to 1.08)
    Leukaemia45983368‡1.45 (0.96 to 2.17)
    Leukaemia excluding CLL401062358*1.83 (1.15 to 2.93)
    Multiple myeloma229618731.43 (0.81 to 2.54)
Other diseases276980†296179†1.01 (0.97 to 1.06)
Accidents and violence436121†417116*1.07 (0.95 to 1.21)
Unknown106139
All causes485789†516288†1.01 (0.98 to 1.05)