QUALITY of INTERVENTIONAL STUDIES

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
17473911 Lyons 2007 RCT-parallel Y Y NA Y nd Y Y Y Y B/C
Adverse Event(s): ** nd
Explanation for Overall Quality Grade (if not Grade A): Poor reporting on the result section, no information on background diet.
Quality rating C for mortality data due to inconsistent reporting between figure and table.

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.

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: L-Q

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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