Comparison 12. Surgery vs control.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
12.1 Rate of falls	5		Rate Ratio (IV, Fixed, 95% CI)	Subtotals only
12.1.1 Cardiac pacing vs control	3	349	Rate Ratio (IV, Fixed, 95% CI)	0.73 [0.57, 0.93]
12.1.2 Cataract surgery (1st eye) vs control	1	306	Rate Ratio (IV, Fixed, 95% CI)	0.66 [0.45, 0.95]
12.1.3 Cataract surgery (2nd eye) vs control	1	239	Rate Ratio (IV, Fixed, 95% CI)	0.68 [0.39, 1.17]
12.2 Number of fallers	4		Risk Ratio (IV, Fixed, 95% CI)	Subtotals only
12.2.1 Cardiac pacing vs control	2	178	Risk Ratio (IV, Fixed, 95% CI)	1.20 [0.92, 1.55]
12.2.2 Cataract surgery (1st eye) vs control	1	306	Risk Ratio (IV, Fixed, 95% CI)	0.95 [0.68, 1.33]
12.2.3 Cataract surgery (2nd eye) vs control	1	239	Risk Ratio (IV, Fixed, 95% CI)	1.06 [0.69, 1.63]
12.3 Number of people sustaining a fracture	3		Risk Ratio (IV, Fixed, 95% CI)	Subtotals only
12.3.1 Cardiac pacing vs control	1	171	Risk Ratio (IV, Fixed, 95% CI)	0.78 [0.18, 3.39]
12.3.2 Cataract surgery (1st eye) vs control	1	306	Risk Ratio (IV, Fixed, 95% CI)	0.33 [0.10, 1.05]
12.3.3 Cataract surgery (2nd eye) vs control	1	239	Risk Ratio (IV, Fixed, 95% CI)	2.51 [0.50, 12.52]