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doctorportal Learning is on the move as we will be launching a new website very shortly. If you would like to sign up to dp Learning now to register for CPD learning or to use our CPD tracker, please email support@doctorportal.com.au so we can assist you. If you are already signed up to doctorportal Learning, your login will work in the new site so you can continue to enrol for learning, complete an online module, or access your CPD tracker report.

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All other doctorportal services, such as Find A Doctor, are no longer available.

[Correspondence] Body-mass index and all-cause mortality

On the basis of finding that both overweight and obesity were associated with higher all-cause mortality in an Article in The Lancet1 the Global BMI Mortality Collaboration claimed that strategies are needed to “combat the entire spectrum of excess adiposity in many populations”. This assertion assumes that elevated body-mass index (BMI) is the primary cause of the higher mortality rates in overweight and obese adults reported in the Global BMI Mortality Collaboration study. However, this assumption fails to acknowledge the independent contributions of cardiorespiratory fitness and physical activity that substantially influence mortality risk.