Other variables associated with socioeconomic status (occupational status, cooking food indoors versus outdoors, and employed/unemployed) were not associated with high HHV-8 titers.
The questionnaire elicited information on demographic factors, residential history, lifetime use of household stove and fuel type, occupational history, tobacco smoking, cooking food, time spent indoors and outdoors, and medical history.
We examined associations between percent predicted pulmonary function and predicted BC using linear regression, adjusting for sociodemographics (individual and neighborhood levels), smoking status, occupational exposure, type of cooking fuel, and a diagnosis of asthma or chronic bronchitis.
The main risk factors include age, environmental tobacco exposure, cooking fumes, inherited genetic susceptibility, occupational and environmental exposure to carcinogens, hormonal factors, pre-existing lung disease and oncogenic viruses [ 40].
Employed women and those in more affluent occupational social classes tended to spend less time cooking, whilst women with more education tended to spend more time cooking.
All subjects were lifelong residents of Mexico City, were never-smokers, never had occupational dust exposure, and never used biomass fuel for cooking.
For the categorical variables, we matched the session-specific data (e.g. rented vs. owned home, cooking stove, pregnant and working status, and occupational exposure) to PB-PAH exposures by subject and session of measurement.
Examples include fires made outside of the home for cooking animal food, burning refuse, heating water, or for occupational purposes.
In women, whilst employment and higher occupational social class tended to be associated with less time spent cooking, greater educational attainment tended to be associated with more time spent cooking.
Non-occupational exposure largely consists of caring for household poultry, preparing or cooking poultry, visiting a LBM or living in close proximity to poultry.
