Question

Selected characteristics of the population are presented below according to renal insufficiency and physical activity status via these two measures: Renal insufficiency in - 2800) No renal insufficiency in 4500) Exercise Occupationally active Yes No N=1043 N= 1757 Yes N: N 1120 Gender (male) 698 Female 422 Diabetes (Yes) 100 No N= 1600 990 610 Exercise Occupationally active Yes No Yes No N= N= N= N= 2036 2940 1560 2464 1890 1008 1801 1097 1050 552 663 367 401 366 500 2573 11592098 1536 731 312 144 957 800 256 939 255 Diabetes (No) 1020 1345 899 1501 134 137 147 361 Smoking (Current) 361 347 366 342 986 1463 919 1610 2593 1213 2098 1694 Smoking (Never) Question 8 5 pts Compute the point prevalence of renal insufficiency in people who smoke and are occupationally inactive.

Answer 1

Point prevalence :

Prevalence is an indicator of how the disease is widespread in a population

Point prevalence is nothing but at a given point of time how many individuals have the disease over the total number of individuals at that point of time.

Here the question is about the prevalence of Renal Insufficiency in individuals who smoke but physically inactive.

147 subjects who are smoking as well as occupationally inactive

Total number of subjects who has renal insufficiency is 2800.

Hence the point prevalence is (147/2800) ×100= 5.25 %.

Notes : If your question is intended to measure Point prevalence ndividually like number of smoking subjects over number of renal in sufficiency patients is (542/2800 ) ×100 = 19.35%

If your question is intended to measure point prevalence like number of ocvupationally inactive over number of renal insufficiency patients is (1757/2800) × 100 =62.75%