Pediatric emergency room visits: a risk factor for acquiring measles.

摘要: In recent years, measles outbreaks have occurred among unimmunized children in inner cities the United States. From May 1988 through June 1989, 1214 cases were reported Los Angeles, and from October 1730 Houston. More than half of younger 5 years age, most whom unvaccinated. Of preschool-aged children, nearly one fourth Angeles more third Houston by inner-city emergency room. To evaluate whether room visits a risk factor for acquiring measles, 35 patients 109 control with illnesses other Houston, 49 128 patients, who visited these rooms, enrolled case-control studies. Control matched to case ethnicity, week visit. Records reviewed determine had during period potential exposure, which was defined as 10 18 days before rash onset, their enrollment 23% 5% (odds ratio = 5.2, 95% confidence interval 1.7, 15.9; P