Comparison 4. Email compared to standard methods of communication: Primary outcome, patient behaviours/actions.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Used the Internet to find information about your disease	1	74	Odds Ratio (M‐H, Fixed, 95% CI)	1.13 [0.42, 3.04]
2 Used Internet to find information about where to seek treatment	1	74	Odds Ratio (M‐H, Fixed, 95% CI)	0.65 [0.10, 4.12]
3 How did communication with the surgeon affect your ability to make appropriate work/family arrangements for the operation (Scale 1‐7)			Other data	No numeric data