Conclusions HbA1c is neither sensitive nor specific for detecting pre‐diabetes ; fasting glucose is specific but not sensitive .
Interventions in people classified through screening as having pre‐diabetes have some efficacy in preventing or delaying onset of type 2 diabetes in trial population s. As screening is inaccurate , many people will receives an incorrect diagnosis and be referred on for interventions while others will be falsely reassured and not offered the intervention .
These findings suggest that “ screen and treat ” policies alone are unlikely to have substantial impact on the worsening epidemic of type 2 diabetes .
& NA ; Objectives To assess diagnostic accuracy of screening tests for  pre‐diabetes  and efficacy of interventions ( lifestyle or metformin ) in preventing onset of type 2 diabetes in people with pre‐diabetes .
Impact of health professionals' contact frequency on response to a lifestyle intervention with individuals at high risk for diabetes.
AIM To determine the independent effects of total and each health professional 's frequency of contacts , on changes in anthropometric measures and physical capacity following a lifestyle intervention offered by a multi-disciplinary team in adults at high risk for type 2 diabetes . MATERIAL S AND METHODS A 12-month lifestyle intervention was performed in 48 adults with prediabetes . Participants were r and omly assigned to either an individual counselling group ( every six weeks)+an optional series of 25 group seminars ( every week ) or to the group seminars only . Physical activity level , energy intake , anthropometric measures , and physical capacity were assessed . RESULTS Total frequency of contacts with any professional was associated with change in body weight , BMI and , waist circumference ( all P ≤.05 ) . However , no frequency of contacts with a specific professional was associated with the studied outcomes , except for changes in physical capacity . The latest was significantly improved in participants who attended at least two group sessions with the kinesiologist ( P=.02 ) . DISCUSSION To improve anthropometric measures , total contact frequency seems to be more important than contact frequency with any specific professionals . However , to improve physical capacity , meeting with a kinesiologist for two or more occasions , in group sessions , seems to be an effective strategy
Conclusions HbA1c is neither sensitive nor specific for detecting pre‐diabetes ; fasting glucose is specific but not sensitive .
Interventions in people classified through screening as having pre‐diabetes have some efficacy in preventing or delaying onset of type 2 diabetes in trial population s. As screening is inaccurate , many people will receives an incorrect diagnosis and be referred on for interventions while others will be falsely reassured and not offered the intervention .
These findings suggest that “ screen and treat ” policies alone are unlikely to have substantial impact on the worsening epidemic of type 2 diabetes .
& NA ; Objectives To assess diagnostic accuracy of screening tests for  pre‐diabetes  and efficacy of interventions ( lifestyle or metformin ) in preventing onset of type 2 diabetes in people with pre‐diabetes .