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Table 3 Results of the models

From: Comparing methods for handling missing cost and quality of life data in the Early Endovenous Ablation in Venous Ulceration trial

 

Time point

RMM

RMFE

CCA

MIPMM

MILR

BPA

Differences in mean costs (standard error) (95% confidence interval) (£)

1-year

N = 450

− 70 (482)

CI (− 1014 to 874)

N = 450

− 93 (525)

CI (− 1123 to 936)

N = 338

− 4 (326)

CI (− 644 to 636)

N = 450

50 (295)

CI (− 528 to 627)

N = 450

(307)

CI (− 534 to 669)

N = 450

137(305)

CI (− 340 to 665)

3-years

N = 450

− 159 (565)

CI (− 1265 to 949)

N = 450

− 180 (610)

CI (− 1375 to 1015)

N = 44

215 (831)

CI (− 1531 to 148)

N = 450

25 (312)

CI (− 586 to 637)

N = 450

58 (328)

CI (− 583 to 700)

N = 450

− 38 (360)

CI (− 637 to 556)

5-years

N = 450

− 93 (651)

CI (− 1369 to 1184)

N = 450

− 111 (697)

CI (− 1477 to 1255)

N = 147

464 (751)

CI (− 1008 to 1936)

N = 450

8 (333)

CI (− 645 to 661)

N = 450

57 (354)

CI (− 637 to 751)

N = 450

1200 (807)

CI (− 122 to 2536)

Differences mean QALY (standard error) (95% confidence interval)

1-year

N = 450

0.05 (0.02)

CI (0.02 to 0.08)

N = 450

0.05 (0.02)

CI (0.02 to 0.08)

N = 338

0.04 (0.02)

CI (0.01 to 0.07)

N = 450

0.05 (0.02)

CI (0.01 to 0.08)

N = 450

0.05 (0.02)

CI (0.01 to 0.08)

N = 450

0.05(0.02)

CI (0.02 to 0.78)

3-years

N = 450

0.07 (0.07)

CI (− 0.06 to 0.20)

N = 450

0.07 (− 0.07)

CI (− 0.06 to 0.20)

N = 44

0.04 (0.13)

CI (− 0.21 to 0.29)

N = 450

0.08 (0.05)

CI (− 0.04 to 0.20)

N = 450

0.09 (0.08)

CI (− 0.07 to 0.25)

N = 450

0.12 (0.13)

CI (0.09 to 0.34)

5-year

N = 450

0.05 (0.11)

CI (− 0.16 to 0.26)

N = 450

0.05 (0.11)

CI (− 0.16 to 0.26)

N = 147

0.01 (0.12) CI (− 0.24 to 0.25)

N = 450

0.05 (0.08)

CI (− 0.10 to 0.20)

N = 450

05 (0.12)

CI (− 0.20 to 0.31)

N = 450

0.16 (0.17)

CI (− 0.03 to 0.58)

ICER £/QALY

1-year

Dominant

Dominant

Dominant

1082

1430

2728

3-years

Dominant

Dominant

6075

319

627

Dominant

5-years

Dominant

Dominant

59,500

159

1010

7394

  1. RMM repeated measure mixed model, RMFE repeated measure fixed effect, CCA complete-case-analysis, MIPMM multiple imputation using predictive mean matching, MILR multiple imputation using linear regression, BPA Bayesian parametric approach, QALY quality-adjusted life years, ICER incremental cost ratio