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Table 2 Correlation analysis between secondary labels (α = 0.05, n = 483)

From: Identifying self-reported health-related problems in home-based rehabilitation of older patients after hip replacement in China: a machine learning study based on Omaha system theory

Label A

Label B

Correlation coefficient

Statistics tested

Speech and language

Consciousness

0.45

10.93184132

Nutrition

Medication regimen

0.40

9.542014593

Circulation

communicable/infectious condition

0.33

7.6977035

Physical activity

Health care supervision

0.33

7.671889236

Pain

Neuromusculoskeletal function

0.29

6.709414938

Respiration

Other health-related behaviors

0.24

5.48411013

Sleep and rest patterns

Physical activity

0.23

5.222293589

Neuromusculoskeletal function

Physical activity

0.23

5.187830114

Residence

Vision

0.20

4.562193348

Sleep and rest patterns

Other health-related behaviors

0.20

4.55268952