Dear colleague,

As I understand you're referring to food intake ("...high/low/medium..."). Here are some literature I believe will help you:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2800288/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1783582/

https://www.google.com.br/url?sa=t&source=web&rct=j&url=http://www.tandfonline.com/doi/pdf/10.1080/028134301316982388&ved=0ahUKEwiLtc_dkpHXAhWHEpAKHS2zAq8QFgg6MAM&usg=AOvVaw0Rl8LZpLcwPRkov-9Zqi76

http://care.diabetesjournals.org/content/25/suppl_1/s21

https://academic.oup.com/intqhc/article/15/4/301/1792992/Outcomes-of-diabetes-care-a-population-based-study

http://guidelines.diabetes.ca/browse/chapter35

Sincerely,

Hércules Freitas

Dear Hércules,

Thank you for your response and help. But I was referring to uptake and retention/adherence of diabetes prevention studies. What I meant was, does anyone know of papers that categorise any lifestyle intervention studies into high, low, medium uptake or dropout? For example, 0-33% is low uptake, 33-66% is medium uptake and 66-100% is high uptake. I was looking for papers or guidelines that state this or somethng similar

Thank you

Sonia