Optimising Repeated Exposure: Determining Optimal Exposure Frequency for Introducing a Novel Vegetable among Children

Total Pesticide Exposure Calculation among Vegetable Farmers in Benguet, Philippines

This was a cross-sectional study that investigated pesticide exposure and its risk factors targeting vegetable farmers selected through cluster sampling. The sampling size calculated with P = .05 was 211 vegetable farmers and 37 farms. The mean usage of pesticide was 21.35 liters. Risk factors included damaged backpack sprayer (34.7%), spills on hands (31.8%), and spraying against the wind (58%...

Repeated exposure in a natural setting: a preschool intervention to increase vegetable consumption.

BACKGROUND Laboratory and home-based research suggest that repeated exposure to vegetables may increase consumption among children. Effectiveness of repeated exposure to vegetables has not been tested in a community-based preschool setting. OBJECTIVE This randomized controlled trial tested the hypotheses that children who are served unfamiliar vegetables repeatedly in the preschool lunch sett...

Vocabulary Acquisition through Frequency Exposure via Reading

Repeated pesticide exposure among North Carolina migrant and seasonal farmworkers.

BACKGROUND Limited data document the multiple and repeated pesticide absorption experienced by farmworkers in an agricultural season or their risk factors. METHODS Data were collected from 196 farmworkers four times at monthly intervals in 2007. Urine samples were tested for 12 pesticide urinary metabolites. Questionnaire data provided measures of exposure risks. RESULTS Farmworkers had at ...

Environmental tobacco smoke exposure among urban children.

BACKGROUND Environmental tobacco smoke (ETS) exposure is a well-known health hazard for children. Poor urban children may be at increased risk of exposure from nonparental sources of tobacco smoke. The unique problems of ETS exposure in urban children have previously not been well-defined. OBJECTIVES This study was conducted: 1) to identify the sources of ETS exposure for children attending a...