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Table 1 Descriptive statistics

From: Does disease management for diabetic nephropathy reduce medical expenditure? Evidence from a three-period difference-in-differences analysis

Variable Description

Mean

Std. Dev.

Min

Max

Obsevations

Individuals

Dialysis cost (Yen)

63,760

454,159

0

8,848,000

80,297

2856

Total medical claim cost (Yen)

86,745

205,162

70

6,885,340

80,297

2856

T:treatment group dummy variable (β1)

0.012

0.110

0

1

80,297

2856

A:after intervention dummy variable (β2)

0.163

0.369

0

1

80,297

2856

TA: treatment group and after intervention dummy variable (β3)

0.007

0.086

0

1

80,297

2856

TB: treatment group and before intervention dummy variable (β4)

0.010

0.101

0

1

80,297

2856

B: before intervention dummy variable (β5)

0.137

0.344

0

1

80,297

2856

Female gender dummy variable

0.544

0.498

0

1

80,297

2856

Age

66.336

6.365

19

75

80,297

2856

Charlson comorbidity index scores

2.242

2.052

0

28

80,297

2856

Ondo dummy variable

0.100

0.300

0

1

80,297

2856

Kamagari dummy variable

0.052

0.221

0

1

80,297

2856

primary income earner dummy variable

0.349

0.477

0

1

80,297

2856

secondary income earner dummy variable

0.093

0.290

0

1

80,297

2856

  1. Note: All monetary values are in Japanese yen