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Table 3 Differences in pooled mean costs, effects (95%CI), and incremental cost-effect ratios (ICERs)

From: Cost-effectiveness of an exercise program during pregnancy to prevent gestational diabetes: Results of an economic evaluation alongside a randomised controlled trial

Analysis

Sample size

Outcome

ΔC (95%CI)

ΔE (95%CI)

ICER

Distribution CE plane

 

I

C

 

  

NE

SE

SW

NW

FCA

49

52

Fasting glucose

986 (−424 ; 2668)

−0.021 (−0.22 ; 0.18)

−46971

37.1

4.4

5.4

53.2

 

49

52

IS homa

986 (−424 ; 2668)

0.006 (−0.005 ; 0.017)

162995

11.4

1

8.9

78.7

 

49

52

QALY

986 (−424 ; 2668)

−0.005 (−0.031 ; 0.021)

−208558

31.4

5.4

4.7

58.4

 

49

52

Birth weight

1308 (−229 ; 3204)

156 (−83.9 ; 395.1)

8.4

9.4

0.2

5.6

84.7

HCM

49

52

Fasting glucose

1029 (−392 ; 2830)

−0.021 (−0.22 ; 0.18)

−49008

37.4

4.3

5.5

52.9

 

49

52

IS homa

1029 (−392 ; 2830)

0.006 (−0.005 ; 0.017)

170064

11.2

1

8.7

79.1

 

49

52

QALY

1029 (−392 ; 2830)

−0.005 (−0.031 ; 0.021)

−217602

31.7

5.4

4.5

58.5

 

49

52

Birth weight

1352 (−199 ; 3356)

156 (−83.9 ; 395.1)

8.7

9.5

0.2

5.9

84.3

  1. Abbreviations: ΔC; costs intervention group-costs control group, ΔE; effects intervention group-effects control group, 95%CI; 95% confidence interval, ICER; incremental cost-effectiveness ratio, CE; cost-effectiveness, I; intervention group, C; control group, €; Euros, FCA; friction cost approach, HCM; human capital method.
  2. NE; refers to the northeast quadrant of the CE plane, which indicates that the exercise program is more effective and more costly than the control group.
  3. SE; refers to the southeast quadrant of the CE plane, which indicates that the exercise program is more effective and less costly than the control group.
  4. SW; refers to the southwest quadrant of the CE plane, which indicates that the exercise program is less effective and less costly than the control group.
  5. NW; refers to the northwest quadrant of the CE plane, which indicates that the exercise program is less effective and more costly than the control group.