Table 1 Variable description.

From: Machine learning and statistical models for analyzing multilevel patent data

Abbreviations

Description

Mean

SD

Min.

Max.

NumPat

Number of patents

888.51

1446.50

0.00

9,951.00

Pop

Population

4526.72

2975.69

340.00

12,684.00

GDP

Gross domestic product

30,253.57

24,993.020

124,369.70

1173.00

NumHeaTec

Number of health technicians per 10,000 people

71.05

12.98

45.00

126.00

R &D

Research and development

99,422.66

144,492.69

190.00

700,017.00

NumHeaPer

Number of health personnel

40.37

25.34

2.92

102.79

FinEdu

Financial expenditure on education

1000.06

616.57

152.57

3,510.56

FinSci

Financial expenditure on science and technology

166.32

201.56

4.81

1168.79

FinHea

Financial health care expenditure

510.84

300.43

69.97

1772.99

HeaInc

Health industry income per capita

99,681.45

31,336.74

51,135.00

208,481.00

NumPatHeaPer

Number of patent applications per 10,000 health personnel

17.99

22.05

0.00

120.87

Pro

Province

categorical

categorical

categorical

categorical