Linear rank tests for interval-censored data with application to PCB levels in adipose tissue of transformer repair workers.
Linear rank statistics are described for testing for differences between groups when the data are interval-censored. The statistics are closely related to those described by Prentice (1978, Biometrika 65, 167-179) for right-censored data. Problems in calculating the statistics are discussed and several approaches to computation including estimation of the efficient rank scores are described. Results from a small simulation study are presented. The methods are applied to data from a study relating tissue levels of PCBs to occupational exposure.
D000273:Adipose Tissue / Q000032:analysis*; D001699:Biometry; D004781:Environmental Exposure; D006801:Humans; D009790:Occupations; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D011336:Probability; D012044:Regression Analysis
D011078:Polychlorinated Biphenyls