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[DOC File]Rossman/Chance
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Calculate the relative risk of injury among machine users compared to free-weight users. RR = 0.085/0.035 = 2.4. Is this a risk ratio or rate ratio? This is a risk ratio, because it uses cumulative incidence. Calculate the odds ratio for injury among machine users (yes!
odds ratio and risk ratio

[DOC File]FDMAT 222
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Odds Ratio vs. Relative Risk Consider a generic two-way table classifying whether a person smokes and whether he/she has a disease: Smoker Non-smokers Disease A B No disease C D Derive the expression for the difference in conditional proportions with the disease for smokers vs. non-smokers in terms of A, B, C, and D.
relative risk formula

[DOC File]Lab 5: Proportions, risks, odds and rates
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/*odds ratio and relative risk for each subgroup of 3x2 table*/ proc freq data=werner ; where agegroup =1 or agegroup=2; tables agegroup*hichol /chisq relrisk; format agegroup agefmt. hichol cholfmt.; title "relative risk for agegroup1 vs agegroup2"; run; proc freq data=werner ; where agegroup =1 or agegroup=3; tables agegroup*hichol /chisq ...
relative risk odds ratio time to event

[DOC File]Table 8a - Centers for Disease Control and Prevention
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Estimates of the Relative Risk (Row1/Row2) ... Case-Control (Odds Ratio) 0.1518 0.0189 1.2189. Cohort (Col1 Risk) 0.7974 0.6781 0.9378. Cohort (Col2 Risk) 5.2537 0.7385 37.3741. Sample Size = 89. Notice that although the Pearson and LR Chi-Square statistics were significant beyond .05, the 95% confidence interval for the odds ratio includes the ...
odds ratio calculator

The Difference Between Relative Risk and Odds Ratios - The Analys…
Odds Ratio and Relative Risk Module. Learning Model Principles. Learners and teachers at BYU–Idaho. . . 1. Exercise faith in the Lord Jesus Christ as a principle of action and power. 2. Understand that true teaching is done by and with the Holy Ghost. 3. Lay hold upon the word of God as found in the holy scriptures and in the words of the ...
or vs rr

[DOCX File]Three Flavors of Chi-Square: Pearson, Likelihood Ratio ...
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But there is not a significant reduced risk since the interval includes 1. Estimate the risk difference and its 95% CI (the same . cs . command) and interpret the results. RD=-0.167 95% CI=(-0.383-0.487) With 95% confidence, we have no evidence that here is a risk difference effect. Estimate the corresponding odds ratio with 95% CI (either . cc ...
what is relative risk

[DOC File]SAS Frequency Tabulations and Contingency Tables (Crosstabs)
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Calculate the odds ratio and relative risk by hand (you don’t need to calculate the 95% CIs by hand). Do your calculations agree with those from SAS? They should. Carry out a stratified analysis of RAN vs. high heartrate at time 2, using SEX as the stratifying variable. The commands below give you …
interpreting relative risk

[DOC File]Unit 4 Practice Questions
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Odds ratios are not reported if fewer than 60% of cases and controls had detectable levels of the chemical in their blood or urine. § The P-value estimates the probability that the deviation of the odds ratio from 1.0 (no difference in risk) is due to chance. A P-value less than 0.05 suggests that chance is unlikely to explain the deviation.
relative risk calculator

Odds ratio vs relative risk