JNCI Journal of the National Cancer Institute 2001 93(21):1661;
© 2001 by Oxford University Press
Journal of the National Cancer Institute, Vol. 93, No. 21, 1661,
November 7, 2001
© 2001 Oxford University Press
ERRATA |
Erratum:
"Cancer Mortality After Nasopharyngeal Radium Irradiation in The Netherlands: a Cohort Study" by Ronckers et al.[J Natl Cancer Inst 2001;93:1021-7(Issue13)]. On 1023, in the "Statistical Analysis" section of "Subjects and Methods," the third through fifth sentences should read: "Thus, the model for comparing nonexposed subjects and NRI-exposed subjects was mean (O) =
E for nonexposed subjects and mean (O) = E;(1 + 
e) for NRI-exposed subjects, where and are unknown parameters and e is an indicator variable for NRI-exposed subjects. Here, RR = 1 + and the excess RR (ERR) = . For radiation dose-specific comparisons, the linear model is mean (O) = E;(1 + 
D), where D = the ERR at dose D and the unknown parameter = ERR per unit dose. Finally, a general model was used in which an effect of exposure per se was combined with a linear dose–response among the exposed: mean (O) = (1 + e) (1 + D)." The authors regret the error.
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