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Table 1 18 health states created by orthogonal design (L18,2*3^7)

From: Similar responses to EQ-5D-3L by two elicitation methods: visual analogue scale and time trade-off

State number

Mobility

Self-Care

Usual Activities

Pain/Discomfort

Anxiety/Depression

1

1

1

1

1

1

2

3

1

1

2

2

3

2

2

1

1

3

4

1

3

2

1

2

5

1

2

3

2

1

6

2

1

2

3

1

7

2

2

2

2

2

8

2

3

3

1

1

9

1

1

3

3

2

10

3

2

1

3

1

11

3

1

2

1

3

12

1

3

1

2

3

13

1

2

2

3

3

14

3

3

2

2

1

15

2

1

3

2

3

16

2

3

1

3

2

17

3

2

3

1

2

18

3

3

3

3

3

  1. The numbers 1, 2, and 3 in five dimensions represent level 1 (no problem), level 2 (moderate problem) and level 3 (severe problem), respectively