HTL 362V Importance of statistics to Health Sciences
1-What are the frequency and percentage of the COPD patients in the severe airflow limitation group who are employed in the Eckerblad et al. (2014) study?
2-What percentage of the total sample is retired? What percentage of the total sample is on sick leave?
3- What is the total sample size of this study? What is the frequency and percentage of the total sample were still employed? Show your calculations and round your answer to the nearest whole percent.
4- What is the total percentage of the sample with a smoking history – either still smoking or former smoker? Is the smoking history for study participants clinically important? Provide a rationale for your answer.
5- What are pack years of smoking? Is there a significant difference between the moderate and severe airflow limitation group regarding pack years of smoking? Provide rationale for your answer.
6-What were the four most common psychological symptoms reported by this sample of patients with COPD? What percentage of these subjects experienced these symptoms? Was there a significant difference between the moderate and severe airflow limitation groups for psychological symptoms?
7-What frequency and percentage of the total sample used short-acting Beta 2 agonist? Show your calculations and round to the nearest whole percent.
8- Is there a significant difference between moderate and severe airflow limitation groups regarding the use of short-acting Beta 2 agonist? Provide a rationale for your answer.
9- Was the percentage of COPD patients with moderate and severe airflow limitation using short-acting Beta 2 agonist what you expected? Provide rationale with documentation for your answer.
10- Are these findings ready for use in practice? Provide rationale.
Reference
Beta2-Agonists for Chronic Obstructive Pulmunary Disease (COPD). (2017). Retrieved from
http://www.webmd.com/lung/copd/beta2-agonists-for-chronic-obstructive-pulmonaty-disease-copd
EXCERCISE 8
1-The number of nursing students enrolled in a particular nursing program between the years of 2010 and 2016,
respectively, were 563, 593, 606, 520, 563, 610, and 577. Determine the mean(x), median (MD), and mode of the number of the nursing students enrolled in this program. Show calculations.
2- What is the mode for the variable inpatient complications in Table 2 of the Winkler et al. (2014) study? What percentage of the study participants had complication?
Answer: Inpatient Complication in Table 2: AMI post admission for patients admitted in UA.
The percentage is 8%.
3- Does the distribution of inpatient complications have a single mode, or is this distribution bimodal or multimodal? Provide rationale.
4- As reported in Table 1, what are the three most common cardiovascular medical history even in the study, and why is it clinically important to know the frequency of these event?
5- What are the mean and median lengths of stays (LOS) for the study participants
6- Are the mean and median for LOS similar or different? What might this indicate about the distribution of the sample? Provide a rationale for your answer.
7- Examine the study results and determine the mode for arrhythmias experienced by the participants. What was the Second most common arrhythmia in this sample?
8- What the most common arrhythmia in Question 7 related to LOS? Was the result statistically significant? Provide rationale.
9- What study variables were independently of the 50 premature ventricular contractions (PVCs) per hour in the study?
10- In Table 1, what race is the mode for this sample? Should these study findings be generalized to American Indian
with ACS? Provide a rationale four your answer.
EXCERCISE 9
1- What were the name and type of measurement method used to measure Caring Practices in the Roch, Dubois, and Clarke (2014) study?
2- The data collected with the scale identified in Question 1 were at what level measurement? Provide a rationale for your answer.
3- What were the subscales included in the CNPISS used to measure RNs’ perceptions of their Caring Practices?
Do these subscales seem relevant? Document your answer.
4- Which subscale for Caring Practices had the lowest mean? What does this result indicate?
5- What were the dispersion results for the Rational Care subscale of the Caring Practices in the Table 2? What do these results indicate?
6- Which subscale of Caring Practices has the lowest dispersion or variation of scores? Provide a rationale for your answer.
7- Which subscale of Caring Practices had the highest mean? What do these results indicate?
8- Compare the Overall rating for Organizational Climate with the Overall rating of Caring Practices. What do these results indicate?
9- The response rate for the survey in this study was 45%. Is this a study strength or limitation? Provide a rationale for your answer.
10- What conclusions did the researchers make regarding the caring practices of the nurses in this study? How might these results affect your practice?