Table 10 Responsiveness of the SF-6D to changes between 4 and 12 months, anchored by NDI classifications

SF-6D changes based on NDI score changes

Decrease

0.7592

0.8200

0.0608

0.5328 90.4519, 0.6134)

0.4813 (0.3728, 0.5896)

673

No change

0.8523

0.8674

0.0152

0.1884 (0.0447, 0.3316)

0.1386 (−0.0628, 0.3398)

190

Increase

0.7656

0.7406

−0.0250

−0.2221 (−0.3562, −0.0875)

−0.1854 (−0.3734, 0.0028)

218

SF-6D changes based on Vernon category changes

Decrease

0.7412

0.8189

0.0777

0.6508 (0.5384, 0.7625)

0.6096 (0.4622, 0.7566)

371

No change

0.8019

0.8219

0.0201

0.1975 (0.1186, 0.2762)

0.1593 (0.0487, 0.2698)

631

Increase

0.7444

0.7052

−0.0392

−0.3482 (−0.5743, −0.1200)

−0.2858 (−0.5988, 0.0281)

79

SF-6D changes based on 4 month Vernon categories

None

0.8594

0.8730

0.0136

0.1482 (0.0462, 0.2500)

0.1445 (0.0009, 0.2880)

374

Mild

0.7827

0.8161

0.0344

0.2878 (0.1963, 0.3790)

0.2922 (0.1648, 0.4194)

479

Moderate

0.6437

0.7202

0.0766

0.5699 (0.4155, 0.7230)

0.6665 (0.4589, 0.8732)

189

Severe

0.5638

0.6408

0.0770

0.6503 (0.2863, 1.0067)

0.7700 (0.2882, 1.2466)

36

Complete

0.5018

0.5150

0.0132

0.1982 (−0.9695, 1.3221)

0.2469 (−1.3765, 1.8411)

3

SF-6D changes based on 12 month Vernon categories

None

0.8333

0.8733

0.0400

0.3844 (0.3006, 0.4679)

0.4019 (0.2866, 0.5171)

590

Mild

0.7378

0.7768

0.0389

0.3096 (0.2027, 0.4160)

0.3293 (0.1809, 0.4775)

354

Moderate

0.6490

0.6552

0.0062

0.0497 (−0.1302, 0.2294)

0.0544 (−0.1998, 0.3085)

119

Severe

0.5615

0.5666

0.0051

0.0538 (−0.4714, 0.5770)

0.0836 (−0.6583, 0.8239)

14

Complete

0.4669

0.5034

0.0365

1.9333 (0.1445, 3.6664)

2.3982 (0.4331, 4.2670)

4

SF-6D changes based on stirling trajectories

Mild

0.8197

0.8485

0.0288

0.2746 (0.2047, 0.3443)

0.2689 (0.1715, 0.3662)

818

Moderate

0.6530

0.7633

0.1103

0.8241 (0.6206, 1.0251)

0.9941 (0.7314, 1.2551)

126

Chronic-severe

0.6348

0.6417

0.0070

0.0583 (−0.1094, 0.2258)

0.0612 (−0.1757, 0.2980)

137