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Table 3 Usage rates of medical treatment categories and relapse PPPM (values in 2016 were adjusted)

From: Recent transition of medical cost and relapse rate of multiple sclerosis in Japan based on analysis of a health insurance claims database

PPPM

2008

2009

2010

2011

2012

2013

2014

2015

2016

Inpatient

0.053

0.049

0.042

0.036

0.037

0.036

0.032

0.032

0.030

Outpatient

1.06

1.07

1.08

0.99

0.95

0.90

0.91

0.86

0.83

Imaging

0.17

0.17

0.14

0.13

0.14

0.16

0.15

0.13

0.13

Lab test

0.75

0.90

0.71

0.68

0.71

0.68

0.64

0.65

0.62

Prescription drug

Relapse treatment

Number of prescription

0.44

0.46

0.33

0.32

0.26

0.17

0.17

0.15

0.15

DMT

Number of prescription

0.39

0.33

0.40

0.39

0.34

0.39

0.40

0.36

0.35

Days supplied/Prescription

18.07

20.82

16.06

16.13

19.46

21.58

23.56

28.31

28.64

total days supplied

7.06

6.84

6.45

6.22

6.55

8.34

9.46

10.12

9.98

Others

Number of prescription

7.74

8.20

7.91

7.20

6.45

5.88

5.75

5.73

5.65

Relapse

0.032

0.036

0.031

0.031

0.025

0.024

0.023

0.020

0.019