Quality of life (healthcare)
Productivity
Work (physics)
Psychology
Health related quality of life
Positive correlation
Negative correlation
Scale (ratio)
Quality (philosophy)
Spearman's rank correlation coefficient
Work productivity
Life quality
Demography
Gerontology
Medicine
Geography
Sociology
Physical therapy
Mathematics
Economic growth
Nursing
Economics
Engineering
Statistics
Mechanical engineering
Philosophy
Disease
Cartography
Epistemology
Pathology
Internal medicine
