1.2. Analysis.

Comparison 1: Follicular phase versus luteal phase, Outcome 2: Overall Survival

Overall Survival
Study	OS at 1 year	OS at 2 years	OS at 3 years	OS at 4 years	OS at 5 years	Hazard ratio	95% Confidence interval	P value
Overall
Grant 2009					Follicular: 91.9% (95% CI 89.1% t0 94.8%) Luteal: 92.2% (95% CI 88.7% to 95.9%) Indeterminate phase: 91.8% (95% CI 88.2% to 95.5%)	1.10	0.64 to 1.88	0.732
ER tumour status/Nodal disease
Grant 2009						1.00	0.58 to 1.71	0.985
ER negative (follicular versus Luteal)
Grant 2009						0.780	0.36 to 1.68
ER positive (Follicular versus Luteal)
Grant 2009						1.46	0.68 to 3.36