UI Author Year Design * Appropriate Randomization Technique (y/n/nd/NA) Allocation Concealment (y/n/nd/NA) Appropriate Washout Period (y/n/nd/NA) Dropout Rate <20% Blinded Outcome Assessment (y/n/nd) Intention to Treat Analysis (y/n/nd) Appropriate Statistical Analysis ** (y/n) Assessment for Confounding (y/n/nd/NA) Clear Reporting with No Discrepancies (y/n) OVERALL Grade
16280447 Cheng 2005 RCT y nd NA y y y y y y C
Adverse Event(s): ** nd
Explanation for Overall Quality Grade (if not Grade A): small sample size in each group. Underpowered and compliance was low.

NA=not applicable


Please do not copy the 4 categories of study designs from above sections. Specify the exact study design: RCT – Parallel, RCT – Cross-over, RCT – Cluster, quasi-RCT, Non-randomized, but controlled trial, before-and-after trial, other interventional design (please explain in detail)


Please do not leave blank. Type nd if there was no data on adverse.

From: Appendix C, Evidence Tables: A-E

Cover of Vitamin D and Calcium
Vitamin D and Calcium: A Systematic Review of Health Outcomes.
Evidence Reports/Technology Assessments, No. 183.
Chung M, Balk EM, Brendel M, et al.

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