47. A national survey indicates that the number of people younger than the age of 16 years with a diagnosis of asthma has increased during the past 10 years. To determine the cause of this increase, 100 patients under the age of 16 years with asthma are selected from each of the following settings: inner city, rural, and suburban. One thousand children without asthma matched for age and from families of similar socioeconomic status are selected, and comparisons among the groups are made. The risk ratio for cigarette smoking in one household member for patients with asthma is 1.8 (95% confidence interval of 1.3 to 3.5). Which of the following best describes this study design? 00 OA) Case-control study B) Case series C) Cross-sectional study OD) Meta-analysis E) Observational cohort study
47. A national survey indicates that the number of people younger than the age of 16 years with a diagnosis of asthma has increased during the past 10 years. To determine the cause of this increase, 100 patients under the age of 16 years with asthma are selected from each of the following settings: inner city, rural, and suburban. One thousand children without asthma matched for age and from families of similar socioeconomic status are selected, and comparisons among the groups are made. The risk ratio for cigarette smoking in one household member for patients with asthma is 1.8 (95% confidence interval of 1.3 to 3.5). Which of the following best describes this study design? 00 OA) Case-control study B) Case series C) Cross-sectional study OD) Meta-analysis E) Observational cohort study
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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