Neil Pearce

TL;DR: Internal validations showed that the observed association between traffic density in the zone of residence and respiratory symptoms did not appear to be explained by an over reporting of traffic by parents of symptomatic subjects, and the results of validation of studies on self-reported traffic exposure can not be generalized.

TL;DR: Overall cancer mortality was not increased for producers and sprayers mainly handling final technical products, although they were likely to have been exposed to TCDD levels far higher than those currently in the general New Zealand population.

TL;DR: If there is a causal association of antibiotic use with asthma risk, it does not appear to explain the international differences in asthma prevalence, and findings are generally not consistent with the hypothesis that antibiotic use increases the risk of asthma, rhinitis, or eczema.

TL;DR: The use of test-negative designs may not completely resolve all potential biases, but they are a valid study design option, and will in some circumstances lead to less bias, as well as often being the most practical option.

TL;DR: The findings are reported from a New Zealand Cancer Registry‐based‐case‐control study involving 427 male patients with testicular cancer registered during the period 1979–1983 and aged 20 years or more at time of registration, and it was found that persons in the upper social class groupings were at increased risk oftesticular cancer.