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A study is conducted to estimate the association between exposure to lead paint in childhook and ADHD. Data on n=400 children are collected and shown in table 9-13 for parts A and B.A) Estimate the crude or unadjusted relative risk.B) Estimate the crude or unadjusted odds ratio.Table 9-26:Exposure to lead paint ADHD No ADHDYes 34 71No 29 266
use table 9-27 for parts C and D:C) Determine the realitive risk and odds ratios for a child's diagnosis of ADHD relative to exposure to lead paint, stratified by the father's diagnosis with and without ADHD.D) How do the results in part C compare to the results from parts A and B?Table 9-14:Fathers with ADHDExposure to Lead Paint ADHD No ADHDYes 27 39No 29 266Fathers without ADHDExposure to lead paint ADHD No ADHDYes 7 32No 22 229
Part E) Use the Data from parts A-D to conduct tests of hypothesis to determine whether the father's diagnosis of ADHD is a confounder (fathers diagnosis and child's exposure, father's diagnosis and child's diagnosis). Is the father's diagnosis of ADHD a confounder? Justify your conclusion.
Explain the structure and functions of keratin. Does every layer of the epidermic contain keratin? Why or why not? Please provide a justification for your answer.
Show the lines of current flow to unexcited parts of the cable. Elucidate how these local currents cause the action potential to propagate. A common mistake is to confuse the currents that flow throughout the action potential the voltage-clamp curren..
The boss in your laboratory has just heard of a proposal through another laboratory that genes for eye color & the length of body bristles may be linked in Drosophila .
A is recessive and confers a black coat, A is dominant to a and confers an agouti coat, and A Y is dominant to both and confers a yellow coat.
Explain why are ripe fruits often colorful, fragrant and sweet? Determine the difference between pollination and fertilization in flowering plants?
Hydrolytic driving force. The hydrolysis of pyrophosphate to orthophosphate is important in driving forwards biosynthetic reactions such as the synthesis of DNA.
Throughout pairing homologous regions associate with one another. As a result individual heterozygous for an inversion will form a structure known as an inversion loop. What is consequence of a crossover within this inverted region.
Clarify the principle and advantage of using a rapid identification system. what is the probability that a son born to this woman would be phenotypically normal with respect to both of these traits.
Assume you are studying three traits in tropical fish: black and white striped pattern is completely dominant to solid color. For eye color, brown eyes are dominant to hazel eyes.
What hormone do the adrenal glands produce. An uncold-worked brass specimen of average grain size 0.008 mm has yield strength of 170 MPa. Estimate the yield strength of this alloy (in MPa) after it has been heated to 600°C for 1260 s, if it is known ..
Eye color is expressed thrugh two genes A and B. Dark brown eye color, A, is dominant over lighter brown a. Eye pigment, B, is dominant over lack of eye pigment, b.
Gene technology carries with it social and ethical implications—many of which engender personal views and discussion.
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