Read Following Abstract Explained for Students (Easy Guide)

This question tests key academic concepts commonly covered in coursework.

What This Question Is About

This question relates to read following abstract and requires a structured academic response.

How to Approach This Question

Start by identifying the main issue, then apply relevant academic frameworks.

Key Explanation

This topic involves read following abstract. A strong answer should include explanation, application, and examples.

Original Question

Read the following abstract and then answer the following four questions. Concern with health effects of extremely low frequency magnetic fields has been raised by epidemiologic studies of childhood cancer in relation to proximity to electric power distribution lines. This study was designed to assess the relation between residential exposure to magnetic fields and the development of childhood cancer. Eligible cases consisted of all 356 residents of the five-county 1970 Denver, Colorado Standard Metropolitan Statistical Area aged 0-14 years who were diagnosed with any form of cancer between 1976 and 1983. Controls were selected by random digit dialing to approximate the case distribution by age, sex, and telephone exchange area. Exposure was characterized through in-home electric and magnetic field measurements under low and high power use conditions and wire configuration codes, a surrogate measure of long-term magnetic field levels. Measured magnetic fields under low power use conditions had a modest association with cancer incidence; a cutoff score of 2.0 milligauss resulted in an odds ratio of 1.4 (95% confidence interval (CI) = 0.6− 2.9) for total cancers and somewhat larger odds ratios (ORs) for leukemias (OR = 1.9), lymphomas (OR = 2.2), and soft tissue sarcomas (OR = 3.3). Neither magnetic fields (OR = 1.0) nor electric fields (OR = 0.9) under high power use conditions were related to total cancers. The results encourage further examination of the carcinogenic potential from this form of nonionizing radiation. a) What is the exposure in this study? (Please limit your answer to 10 words or less.) b) What is the outcome in this study? (Please limit your answer to 10 words or less.) c) What study design are the researchers using? (Circle the one best answer) Randomized control trial a. Cohort study b. Cross-sectional study c. Case-control study d. Ecological study d) Present evidence from the abstract that identifies the essential characteristic of the study design you selected in (c). (Please limit your answer to 15 words or less.)

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