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Table 3 Cost-effectiveness analysis results (main analysis)

From: Six-month cost-effectiveness of adding motivational interviewing or a stratified vocational advice intervention to usual case management for workers with musculoskeletal disorders: the MI-NAV economic evaluation

Outcome

Sample size

∆C (95%CI)

∆E (95%CI)

ICER

Distribution CE-plane (%)

Comparison 1 (UC + MI vs. UC)

 

UC + MI

UC

EUR

Points

NOK/point

NE

SE

SW

NW

QALYs (0–1)

169

171

-2580 (-5687 to 612)

-0.001 (-0.02 to 0.01)

1756221

1.1

40.8

53.9

4.2

Sickness absence days reduction over six months

169

171

-538 (-1358 to 352)

5.08 (-3.3 to 13.5)

-106

8.5

79.1

10.0

2.1

Comparison 2 (UC + SVAI vs. UC)

 

UC + SVAI

UC

EUR

Points

NOK/point

NE

SE

SW

NW

QALYs (0–1)

169

171

-2899 (-5840 to 18)

-0.002 (-0.02 to 0.01)

1553061

0.5

39.9

57.5

2.1

Sickness absence days reduction over six months

169

171

-695 (-1459 to -3)

7.9 (-0.04 to 15.9)

-88

2.6

94.8

2.4

0.2

  1. C Costs, E Effects, ICER Incremental Cost-Effectiveness Ratio, CE-plane Cost-Effectiveness plane, NE Northeast-Quadrant, SE Southeast-Quadrant, NW Northwest-Quadrant, SW Southwest-Quadrant, CI Confidence Interval, UC usual case management, MI motivational interviewing, SVAI stratified vocational advice intervention