Short Answer Section-Round answers to one decimal place (three if you\'re doing

Question

Short Answer Section-Round answers to one decimal place (three if you're doing proportions) Show as much work as possible. Partial credit will be given. A group of 250 women over the age of 40 are recruited for a study to determine the effects that calcium has on bone health. Half of the participants are given a calcium supplement and the other half are given a placebo. 13 women on calcium develop osteomalacia (soft bones) and 27 women on the placebo develop osteomalacia. 1. a) Create a contingency table of the results above. Make sure to includes the appropriate labels. b) What is the count of women on the placebo developing osteomalacia? c) What proportion of women developed osteomalacia? d) What is the relative risk of developing osteomalacia between those who took calcium and those who took the placebo? e) Based on the above responses, what can you say about calcium intake and osteomalacia in older women? 2. In the study of a new anti-hypertensive medication, systolic blood pressures are measured at baseline (at the start of the study). The data are as follows: 120 112 138 145 135 150 145 163 148 128 143 156 160 142 a) Compute the mean BMI b) Compute the standard deviation of BMI c) Compute the median BMI d) Compute Q1 and Q3 e) Are there outliers in the distribution of BMI justify your answer)? f) What can be said about the systolic blood pressure of these subjects at the start of the study? 3. A medical trial into the effectiveness of a new medication was carried out. A total of 425 people took part in the trial. Out of those people, 150 of them were male, and out those males, 30 had a positive response to the medication. Given below is a contingency table with some information: Female Negative 45 150 Complete the table with the appropriate values. b) te the risk difference of a positive response between males and females. on your answer in B, would you say that men or women are more likely to a I, about the effects of this new medication? positive d) What can you concl

Explanation / Answer

Please see below the answers: -

a)

b)

27

c)

40/250=0.16

d)

13/125/27/125=0.48

Calcium Placebo Total Osteomalacia 13 27 40 No Osteomalacia 112 98 210 Total 125 125 250

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