Table 1.

Suggested data collection form completed with data extracted from the report of the example trial in bladder cancer [6]

Trial Reference: BA06	(Chemotherapy)	(No chemotherapy)
Randomisation ratio (e.g. 1:1)	1	1
Patients randomised	491	485
Patients analysed	491	485
Observed events	229	256
Logrank expected events	Not reported	Not reported
Hazard ratio, confidence interval (& level e.g. 95%)	0.85, CI 0.71 to1.02 (95%)
Logrank variance	Not reported
Logrank observed minus-expected events	Not reported
Hazard ratio and confidence interval (& level e.g. 95%) or standard error or variance from adjusted or unadjusted Cox	Not reported
Test statistic, 2-sided p-value to 2 significant figures (& test used e.g. logrank, Mantel-Haenzsel or Cox)	Not reported, 0.075 (logrank)
Advantage to research or control?	Research
Actuarial or Kaplan Meier curves reported?	Yes, Kaplan Meier
Numbers at risk reported	Yes
Follow-up details	Min = 14 months, Max = 82 months (Estimated from recruitment of 69 months, 11/9 – 7/95 and median follow-up of 48 months)