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Use functions provided in DataSHIELD packages to solve the following problems:
Subsets and Statistics
Calculate the mean and the variance of the continuous variable BMI of obese males.
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- Find the quantile mean and plot a histogram of pooled data for the exponent and for the logarithm of LAB_HDL measurement.
2-dimensional contingency tables
- What percentage of females (pooled data) are diabetics?
- What percentage of males in each study separately have stroke (DIS_CVA)?
Generalized Linear Models
- Apply a generalised linear model that predicts the level of glucose between males and females. What is the predicted average level of glucose for males? What is this value for females?
- Apply a GLM to predict the level of glucose using gender and continuous BMI. How much the level of glucose is increasing with the increase of bmi by one unit? What is the predicted glucose level of a female with bmi=22?
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