Table 3. Age-standardised estimates of 1- and 5-year net survival by cancer, stage, and staging strategy.

	Non-restrictive staging strategy	Restrictive staging strategy
Stage	NS (CI)	NS (CI)
Colorectal cancer
One-year net survival
I	0.979 (0.976, 0.981)	0.982 (0.978, 0.985)
II	0.936 (0.933, 0.939)	0.949 (0.945, 0.952)
III	0.880 (0.877, 0.883)	0.898 (0.893, 0.902)
IV	0.495 (0.489, 0.501)	0.510 (0.504, 0.515)
Missing	0.605 (0.599, 0.612)	0.777 (0.774, 0.780)
Five-year net survival
I	0.952 (0.944, 0.960)	0.957 (0.945, 0.969)
II	0.849 (0.843, 0.855)	0.861 (0.852, 0.871)
III	0.638 (0.632, 0.645)	0.665 (0.655, 0.674)
IV	0.152 (0.146, 0.157)	0.158 (0.152, 0.164)
Missing	0.414 (0.406, 0.423)	0.619 (0.614, 0.624)
Lung cancer
One-year net survival
I	0.843 (0.837, 0.848)	0.852 (0.846, 0.858)
II	0.685 (0.675, 0.695)	0.693 (0.683, 0.704)
III	0.431 (0.425, 0.437)	0.439 (0.433, 0.445)
IV	0.182 (0.179, 0.185)	0.183 (0.180, 0.186)
Missing	0.256 (0.250, 0.262)	0.298 (0.293, 0.303)
Five-year net survival
I	0.542 (0.531, 0.554)	0.541 (0.529, 0.554)
II	0.325 (0.310, 0.340)	0.325 (0.309, 0.341)
III	0.099 (0.094, 0.104)	0.100 (0.095, 0.105)
IV	0.025 (0.024, 0.027)	0.026 (0.024, 0.028)
Missing	0.093 (0.088, 0.098)	0.125 (0.120, 0.130)

Abbreviations: CI, confidence interval; NS, net survival. Diagnoses in England, 2008–2012.