This study endorses public health recommendations for prudent use of mobile phones, including using wired hand-free sets or other exposure-reducing measures, until more evidence about the possible health effects has been obtained.
Exposure to PM2.5 for 3 days reduced measures of HRV in C57BL/6 mice.
Results of another study in cultured human fibroblasts indicated that As exposure reduced DNA repair capacity as measured by the comet assay (Curnow et al. 2001).
"Exposure reduces prejudice," Professor Duflo suggested.
The primary objective is to determine whether POPS + IYS is more effective, compared to POPS alone or Usual HS Exposure, in reducing adiposity measures (BMI z-score, skinfolds thickness).
Careful evaluation of the validity and improvements in precision of an exposure measure reduce error in the measurements and bias in the exposure effect relationship.
Use of the combined exposure measure reduced this sample size further to 47% or 52%, respectively.
In this study we were able to account for many risk factors for cardiovascular disease, we individually and consistently diagnosed cases and controls, and individually measured arsenic exposure, thereby reducing misclassification.
Unfortunately, while biomarkers of exposure can reduce such bias, these measures rarely can reconstruct past exposure and may be affected by the current disease status, which may be one of the great challenges of retrospective studies.
Exposure to air pollutants, particularly to smoke from heating and cooking fires, appears strongly associated with a woman's risk of stillbirth, but interventions to reduce exposure that measure birth outcomes have not yet been tested.
Regarding drug exposure, PIO reduced peripheral blood chemistry measures significantly and in the direction predicted by prior work (see discussion above and Table 1), suggesting that treatment levels were appropriate.
