25. Observational data were collected by researchers on 189 consecutive births at Baystate Medical Center in Springfield

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25 Observational Data Were Collected By Researchers On 189 Consecutive Births At Baystate Medical Center In Springfield 1 (58.28 KiB) Viewed 151 times

25. Observational data were collected by researchers on 189 consecutive births at Baystate Medical Center in Springfield, Massachusetts (USA). The researchers were interested in u logistic regression to identify maternal and other factors associated with the low birth weight births (as per the World Health Organization's definition of low birth weight as < 250 grams). The average birth weight for the 189 infants in the sample was 2,945 grams (s= 729, range -709 -4,990 grams) 59 infants (30%) meeting the low birth weight criteria. ADCOCOD 30oC The first regression relates the log (In) odds of low birth weig (LBW) to mother's smoking status during pregnancy, and is follows: In(oddsof LBW) = -1.09 +0.70.xy, where x = 1 if the moth smoked during pregnancy (and O if not). The estimated stan error of the slope of X (SE(B))is 0.32. - What is the estimated odds ratio for being low birth weig for children of mothers who smoked during pregnancy, compared to mother's who did not smoke during pregnan a. 0.70 b. -0.70 c. 2.0 d. 0.50 26. Observational data were collected by researchers on 189 consecutive births at Baystate Medical Center in Springfield, Massachusetts (USA). The researchers were interested in u logistic regression to identify maternal and other factors associated with the Tow birth wergnt oirths (as per the World