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Table 2 Patient characteristics of the real cases

From: DRG grouping by machine learning: from expert-oriented to data-based method

Variable

Sample size

Gender

Male

456

Female

606

Age (years)

≤ 20

142

21–40

107

41–60

330

> 60

483

Length of stay (days)

≤ 5

441

6–15

512

> 15

109

Major diagnosis distribution

Circulatory disease and dysfunction

42

Neurological disease and dysfunction

430

Musculoskeletal disease and dysfunction

245

Diseases and dysfunction of the female reproductive system

219

Neonatal and other perinatal neonatal diseases

127