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Table 1 Characteristics of adopters

From: Diffusion patterns of new anti-diabetic drugs into hospitals in Taiwan: the case of Thiazolidinediones for diabetes

 

Long-term adopters

 

Short-term adopters

 

Non-adopters

 

P-value

 

N

%

N

%

N

%

 

Total

327

100

48

100

205

100

 

   Accreditation level

       

   Medical Center

18

5

0

0

1

0

 

   Regional Hospital

68

21

2

4

8

4

 

   District Hospital

241

74

46

96

196

96

0.00004

Ownership

       

   Public Hospital

67

20

7

15

17

8

 

   Non-profit Hospital

65

20

3

6

4

2

 

   Private Hospital

195

60

38

79

184

90

0.00004

BNHI Regions

       

   Taipei

78

24

12

25

26

13

 

   Northern

49

15

6

12

23

11

 

   Central

81

25

5

10

40

20

 

   Southern

49

15

9

19

40

20

 

   Kao-Ping

59

18

14

29

72

35

 

   Eastern

11

3

2

5

4

1

0.00034

 

mean

Std

mean

Std

mean

Std

 

Herfindahl-Hirschman Indexes1 (HHI)

0.339

0.137

0.45

0.180

0.57

0.223

0.00005

Number of doctors who prescribed TZD drug

34.02

66.97

4.86

5.16

-

-

 

Initial TZD use after TA (month)

15.19

11.61

36.79

16.00

-

-

 

Total DDD of DM2 (DDD)

37917.47

77383.05

8468

12601

2243

3958

0.00005

 

mean

Std

     

Maximum monthly TZD penetration3

0.117

0.067

-

-

-

-

 

Time between initial adoption and the maximum penetration (month)

26.14

13.16

-

-

-

-

 
 

mean

Std

     

Peak use (maximum monthly prescription of TZD in DDD)

6970.01

12678.72

-

-

-

-

 

The time between initial adoption to the maximum prescription of TZD (month)

27.02

13.17

-

-

-

-

 

Prescription Speed (monthly growth on TZD prescription in DDD)

252.65

374.31

-

-

-

-

 

Maximum prescription in DDD

       

25% quantile

 

924.83

-

-

-

-

 

50% quantile

 

2488

-

-

-

-

 

75% quantile

 

6454.83

-

-

-

-

 

Rate of penetration

       

25% quantile

 

39.99

-

-

-

-

 

50% quantile

 

111.22

-

-

-

-

 

75% quantile

 

293.97

-

-

-

-

 
  1. 1: concentration index for hospitals in February, 2001
  2. 2: the total DDD of DM drugs in February, 2001
  3. 3: Maximum TZDs DDD/all DM drugs DDD
  4. 4: χ2 test
  5. 5: one-way ANOVA