Another found only 71 per cent of GPs had their own family doctor and only 11 per cent visited their doctor for regular checkups.
Twenty eight per cent of female GPs surveyed had not undergone recommended cervical screening.
When combined with stress, fatigue, depression or general psychological distress, such lack of basic self-care could lead to treatment or medication errors, the failure to fully discuss treatment options with patients, reduced attentiveness and less caring behaviour towards patients, the study found.
It was suggested improvements would be made if doctors registered with a GP, sought formal healthcare when necessary, acquired appropriate insurance and ensured basic wellbeing by eating well, exercising regularly and having work/life balance.
Specific advice included: "when you visit your general practitioner, leave your 'medical mantle' at the surgery door" and "when ill health strikes, seek help early (as you would like your patients to)."
Finding ways to manage early stressors, such as student debt and the pressure to make career decisions early on, was also recommended.