Table III.

Example 3: Estimated log hazard ratios from 6 studies

Study	Y1	Y2	s1	s2
1	−0.58	−0.18	0.56	0.56
2		0.79		0.24
3		0.21		0.66
4	−1.02	−0.63	0.39	0.29
5		1.01		0.48
6	−0.69	−0.64	0.40	0.40

The variable Y₁ denotes the log hazard ratio for disease-free survival for a mutant to normal p53 gene. Y₂ denotes this quantity for overall survival. s₁ and s₂ denote these variables' within-study standard errors. The within-study correlations are unknown.