352. Note: Conservatism of the Approximation Σ(O - E) 2 /E in the Logrank Test for Survival Data or Tumor Incidence Data

Abstract

Richard Peto, M. C. Pike, 352. Note: Conservatism of the Approximation $\Sigma (O - E)^2$/E in the Logrank Test for Survival Data or Tumor Incidence Data, Biometrics, Vol. 29, No. 3 (Sep., 1973), pp. 579-584