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OBJECTIVE To determine how the number of passengers, their age and their sex influence the risk of different types of Spanish drivers causing a collision between two or more cars. METHODS We(More)
OBJECTIVE To determine the prevalence of gestational diabetes mellitus in a large general obstetric population and its variations depending on the presence of risk factors, and to evaluate how the(More)
This study was designed to compare estimates from two quasi-induced exposure methods of the effects of driver- and vehicle-related conditions on the risk of causing a road crash for drivers of(More)
OBJECTIVE To determine the fraction of hospital deaths potentially associated with nosocomial infection (NI). DESIGN A matched (1:1) case-control study. SETTING An 800-bed, tertiary-care,(More)
This study aimed to estimate the association of cyclists' age and sex with the risk of being involved in a crash with and without adjustment for their amount of exposure. We used the distribution of(More)