Random left censoring: a second look at bone lead concentration measurements.

@article{Popovi2007RandomLC,
  title={Random left censoring: a second look at bone lead concentration measurements.},
  author={Maja Popovi{\'c} and Huiling Nie and David R. Chettle and F E Mcneill},
  journal={Physics in medicine and biology},
  year={2007},
  volume={52 17},
  pages={5369-78}
}
Bone lead concentrations measured in vivo by x-ray fluorescence (XRF) are subjected to left censoring due to limited precision of the technique at very low concentrations. In the analysis of bone lead measurements, inverse variance weighting (IVW) of measurements is commonly used to estimate the mean of a data set and its standard error. Student's t-test is used to compare the IVW means of two sets, testing the hypothesis that the two sets are from the same population. This analysis was… CONTINUE READING