Calculate the odds ratio, Calculate the odds ratio.

Calculate the odds ratio

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Reference no: EM1319797

Question: Complete the following questions related to calculating measures of risk;

[A] Utilizing data described in the following table, calculate the relative risk for the following; Are women who are undergoing in-vitro fertilization more likely to suffer a miscarriage in the first trimester if they have bacterial vaginosis? State your findings (include calculations with your response).

Miscarriage in First Trimester ( Disease)

	Yes	No	Total
Positive	(a)	(b)	(a +b)
Vaginosis	22	39	61
Negative	(c)	(d)	(c +d)
Vaginosis	27	119	146
Total	a + c = 49	b + d = 158	a + b + c + d = 207

[B] The following table reports data related to the effect of greatly threatening life events on the development of breast cancer for women aged 20-70 undergoing biopsy for a suspicious lesion. Women who answered yes had at least one greatly threatening life event in the previous five years (risk factor).

Breast Cancer ( Disease)

	Yes	No	Total
Yes - RF	(a) 19	(b) 15	(a +b) 34
No - RF	(c) 22	(d) 63	(c +d) 85
Total	a + c = 41	b + d = 78	a + b + c + d = 119

Find the odds ratio and complete the following:

Women who have experienced one or more greatly threatening life events in the past five years are ______ more likely to develop breast cancer than those who have not.

Reference no: EM1319797

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