Table 2

Comparison of mortality rates in the Clinical Practice Research Datalink (CPRD) and QResearch cohorts: eligible patients only

CPRDQResearch
CohortPerson yearsNumber of deathsRate/1000 person-years95% CIRate/1000 person-years95% CI
All125 709672553.552.3 to 54.852.150 to 54.3
Age band (years)
 0–444997448.86.5 to 11.99.74.9 to 19.4
 45–5416 50620212.210.6 to 14.110.27.5 to 13.9
 55–6430 43163821.019.4 to 22.716.814.4 to 19.7
 65–7438 365163942.740.7 to 44.832.829.9 to 36
 75–8428 082263893.990.6 to 97.477.072.2 to 82.2
 85–9470731457206.0196.6 to 215.6167.2154.6 to 180.8
 ≥95255107419.8359.0 to 483.1331.4265.4 to 413.7
Women57 169311654.552.7 to 56.454.150.9 to 57.6
Men68 540360952.751.0 to 54.450.748 to 53.6
No diabetes114 949583550.849.5 to 52.149.747.5 to 51.9
Diabetes10 76089082.777.6 to 88.179.070.4 to 88.7
No hypertension80 574424152.651.1 to 54.250.848.3 to 53.4
Hypertension45 136248455.053.0 to 57.255.551.5 to 59.8
No CCF118 209541045.844.6 to 47.041.439.3 to 43.5
CCF75011315175.3166.8 to 184.2118.6110.3 to 127.6
  • CCF, congestive cardiac failure.