A combination of factors appears to play a role in whether preventive services are recommended or delivered to patients aged 50 to 80. An American investigation found that the likelihood of preventive service delivery tended to increase with increasing BMI, patient–physician gender concordance, and each additional minute between the scheduled appointment time and when the physician presented. It decreased with patient age, physician use of electronic medical records, a visit within the past year, and the number of patient-raised concerns.  

Source: American Journal of Preventive Medicine, February 2012.