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craincrew5239
craincrew5239
18.12.2019 • 
Mathematics

Sample problem #3: the following information applies to questions a-d. an article was recently published on the relationship between caffeine consumption during pregnancy and low birth weight. the article was based on the results of a case-control study. as you know, caffeine is present in a wide variety of beverages, foods, and medications, including coffee, tea, and colas. the following statements have been taken from the introduction and results sections of the article. select the hill’s guideline that best describes each statement.a. caffeine exposure during pregnancy could have a harmful effect because caffeine interferes with cell division, metabolism, and growth. (2)a. consistencyb. dose-responsec. temporalityd. biological plausibilitye. strength of the associationb. four prior case-control studies and three cohort studies of caffeine intake during pregnancy have shown an increased risk of low birth weight infants among women who consumed high amounts of caffeine. (2)a. consistencyb. dose-responsec. temporalityd. biological plausibilitye. strength of the associationc. in the current study, there was a four-fold increased risk (or=4.0) of giving birth to a low birth weight infant among women who drank caffeine during pregnancy compared to women who did not consume any caffeine during pregnancy. (2)a. consistencyb. dose-responsec. temporalityd. biological plausibilitye. strength of the associationd. the risk of low birth weight increased as the caffeine consumption increased. compared to women who did not consume any caffeine during pregnancy, the relative risk of giving birth to a low birth weight infant was 1.4 for women who had low caffeine consumption, 2.3 for women who had moderate caffeine consumption, and 5.6 for women who had high caffeine consumption. (2)a. consistencyb. dose-responsec. temporalityd. biological plausibilitye. strength of the association

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