Summary Table of "I" Recommendations
When Evidence is Insufficient

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Please note: In 2003, the CTF updated its Grades of Recommendations to include an "I Recommendation" for situations where insufficient evidence exists to allow a recommendation to be made.  (Formerly, these situations were captured under a "C Recommendation".)  This change is not retroactive, and all "C Recommendations" made prior to 2003 have not been reevaluated in light of the new "I" recommendation grade.  For a discussion of these recommendation grades, please link to the 2003 article in the Canadian Medical Association Journal here.

 
CONDITION MANEUVER POPULATION
Cancers (esophageal, stomach, colorectal, urological, prostate) Vitamin E General population
Cardiovascular disease Vitamin E General population and male smokers
Diabetes Metformin or acarbose treatment to prevent diabetes progression Overweight adults with impaired glucose tolerance
Domestic violence Screening Pregnant or non-pregnant women
Domestic violence Primary care counseling Pregnant or non-pregnant women
Domestic violence Referral to shelters Pregnant or non-pregnant women
Domestic violence Referral to personal and vocational counseling Pregnant or non-pregnant women
Falls prevention in long-term care facilities Structured multidisciplinary programs High-Risk Elderly
Falls prevention in long-term care facilities Interventions (e.g., physiotherapy or exercise programs) to reduce specific risk factors Elderly
Lung Cancer Spiral CT scanning General population
Osteoporotic fractures Screening using bone turnover markers to predict fractures Postmenopausal women
Osteoporotic fractures Primary prevention of fragility fractures using raloxifene, bisphosphonates, calcitonin, parathyroid hormone, fluoride or combination therapy Postmenopausal women
Osteoporotic fractures Secondary prevention of fragility fractures using calcium and vitamin D alone, HRT, exercise, calcitonin, parathyroid hormone, fluoride or combination therapy Postmenopausal women
Osteoporotic fractures Tertiary prevention of fragility fractures using exercise, HRT, calcitonin, fluoride or combination therapy Postmenopausal women

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