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Table 3 Parameter values and distributions examined in sensitivity analyses

From: An economic analysis of usual care and acupuncture collaborative treatment on chronic low back pain: A Markov model decision analysis

Variable groups

Name (Citation)

'Live' value

Probabilistic

Deterministic

Standard error

Distribution

alpha

beta

Transition probability(Tp) variables

tATC [21]

0.24

0.04

0.24

28.773

Gamma/Normal

29

91

 

tATW [21]

0.76

0.13

0.76

86.328

Gamma/Normal

91

29

 

tWTC [22]

0.16

0.04

0.16

28.410

Gamma/Normal

26

137

 

tWTW [22]

0.84

0.21

0.84

159.883

Gamma/Normal

137

26

 

tCTW [31]

0.35

0.32

0.35

0.024

Beta

135

252

Resource cost parameters

cUC [41]

507,776 KRW

543,520 KRW

494,071 KRW

507,776 KRW

Gamma

24.69

20566.20

 

cACUC [41]

730,329KRW

706,676 KRW

682,759 KRW

730,329 KRW

Gamma

19.54

37372.18

Utility of Markov states per cycles

uALBP [3]

0.85

0.95

0.85

0.15

Beta

3.97

0.70

 

uCLBPUC [5]

0.62

0.68

0.62

0.10

Beta

13.99

8.57

 

uCLBPACUC [5]

0.65

0.70

0.65

0.10

Beta

14.14

7.61

 

uWell [3]

0.96

0.93

0.96

0.04

Beta

22.08

0.92

Recovery rate of chronic LBP

tRR (Fig. 2)

1.40

1.31

1.40

 

Log normal

0.34 (Ln-mean)

0.05 (Ln-SE)

  1. TP parameters
  2. tATC: TP acute LBP to chronic LBP state, tATW: TP acute LBP to Well state, tWTC: TP Well to chronic LBP state, tWTW: TP Well to Well state, tCTW: TP chronic LBP to Well state, Resource costs parameters
  3. cUC: costs used in chronic LBP state treated by usual care, cACUC: costs used in chronic LBP state treated by collaborationUtility parameters
  4. uALBP: QOL of acute LBP state, uCLBPUC: QOL of chronic LBP state treated by usual care, uCLBPACUC: QOL of chronic LBP state treated by collaboration, uWell: QOL of Well stateRecovery rate
  5. tRR: risk ratio of TP from chronic LBP to the Well state when treated by the collaboration compared with the usual care