This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Definitions and Concepts in HP, Subject name: Social & Preventive Medicine
Measurement of output in terms of results achieved is:- 
Select and explain. 
A. Cost benefit analysis, B. Cost effectiveness analysis, C. Systems analysis, D. Network analysis
B: Cost effectiveness analysis
Answer: B: Cost effectiveness analysis 
Explanation: Cost effective analysis: A management technique where benefits are expressed in terms of results achieved, e.g., number of lives saved or number of days free from disease; It is a more promising tool than cost benefit analysis in the health field. Most comprehensive indicator of CEA: Quality adjusted life years (QALYs) gained. Quality adjusted life years (QALYs)- Number of years of life that would be added by intervention. Cost benefit analysis: Output of a programme is in monetary terms. Eg: RNTCP-2018 saved 40 M US $. System analysis: Comparision of 2/more cost effective alternatives in a health programme. Network analysis: Is the graphic plan of all events and activities to be completed in order to reach end objective. Two common types of network techniques are: PE - Sequence of activities in a health programme to plan, schedule, monitor & furnish timely repos. Critical path: Total duration of activities which is longer.