Comparison 6. Oral Calcium‐vitamin D versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
6.1 Frequency of leg cramps	1		Mean Difference (IV, Fixed, 95% CI)	Subtotals only
6.1.1 At 3 weeks after treatment	1	84	Mean Difference (IV, Fixed, 95% CI)	‐0.30 [‐1.55, 0.95]
6.1.2 At 6 weeks after treatment	1	84	Mean Difference (IV, Fixed, 95% CI)	0.03 [‐1.30, 1.36]
6.2 Severity of leg cramps pain	1		Mean Difference (IV, Fixed, 95% CI)	Subtotals only
6.2.1 Three weeks after treatment	1	84	Mean Difference (IV, Fixed, 95% CI)	‐0.20 [‐0.39, ‐0.01]
6.2.2 Six weeks after treatment	1	84	Mean Difference (IV, Fixed, 95% CI)	0.00 [‐0.17, 0.17]
6.3 Duration of leg cramps	1		Mean Difference (IV, Fixed, 95% CI)	Subtotals only
6.3.1 At 3 weeks after treatment	1	84	Mean Difference (IV, Fixed, 95% CI)	‐0.30 [‐1.55, 0.95]
6.3.2 At 6 weeks after treatment	1	84	Mean Difference (IV, Fixed, 95% CI)	0.03 [‐1.30, 1.36]