2. In a study of the adverse effects of x-rays among children, a retrospective cohort study was done using records from several large children's hospitals for the period of 1980 to 1985. 10,000 children were selected as a representative population of ill children seen at the hospitals during that time. Subjects were classified according to whether or not they received an x-ray during their stay in the hospital and were followed from their hospital stay through 2005 for the development of cancer. During the follow-up period, 49 incident cancers occurred in 3,263 children who had received an x-ray, and 47 incident cancers occurred in the 6,737 children who had not received an x-ray during their hospitalization. What are the rates of cancer incidence in each exposure group?

2. In a study of the adverse effects of x-rays among children, a retrospective cohort study was done using records from several large children's hospitals for the period of 1980 to 1985. 10,000 children were selected as a representative population of ill children seen at the hospitals during that time. Subjects were classified according to whether or not they received an x-ray during their stay in the hospital and were followed from their hospital stay through 2005 for the development of cancer. During the follow-up period, 49 incident cancers occurred in 3,263 children who had received an x-ray, and 47 incident cancers occurred in the 6,737 children who had not received an x-ray during their hospitalization. What are the rates of cancer incidence in each exposure group?

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

See similar textbooks

Similar questions

Pathophysiology Hepatitis B 6:50 p
female complaining of a bad headache, blurred vision and that herstomach hurts. pointing to the upper right abdomen.
Clinical manifestation of post abdomenal weakness
Definition of edema
pathophysiology of vitiligo
Mrs. J. is a 25-y/o gravida 2, para 1, who was admitted at full term at 5:00 p.m. She stated that she had been having contractions at 8 to 10 minute intervals since 4 p.m. They lasted 25 seconds. She also stated that she had been having "a lot of false labor" and this makes her still able to feed and able to maintain a conversation and is getting excited. But now she hoped that this was "the real thing". Her membranes were intact. Mrs. J.'s temperature, pulse and respirations were normal and her blood pressure was 115/70. The fetal heart tones were 140 and regular. The nurse examined Mrs. J. and found that the baby's head was at +1 station, and the cervix was 4 cm. dilated and 70 percent effaced. As the labor progresses, there will be some discomforts Mrs. J will experience. By accomplishing the table below, you will be able to anticipate these discomforts then may be able to apply measures to alleviate or assist Mrs. J to have a safe delivery.
Pathopysiology for imperforated anus
OESK MUST SIGN
в 4 D