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Table 4 Total and average valency per health state for reported sampling schemes analysed by severity index

From: Improving valuation sampling of EQ-5D health states

   Valency (valency/state) of health states present in each valuation study
Severity index EQ-5D states UK / Spain / US Denmark Germany Japan / Netherlands
0 1 5 (5.00) 5 (5.00) 5 (5.00) 5 (5.00)
1 5 13 (2.60) 17 (3.40) 13 (2.60) 7 (1.40)
2 15 9 (1.80) 16 (2.29) 8 (1.60) 1 (1.00)
3 30 5 (1.67) 8 (2.00) 1 (0.50) 0 (0.00)
4 45 10 (1.25) 12 (1.50) 7 (1.17) 0 (0.00)
5 51 6 (1.50) 11 (2.20) 6 (1.50) 0 (0.00)
6 45 3 (0.75) 7 (1.75) 3 (0.75) -
7 30 5 (0.50) 9 (1.00) 5 (0.83) 0 (0.00)
8 15 2 (1.00) 5 (1.67) 2 (2.00) -
9 5 1 (1.00) - 1 (1.00) 1 (1.00)
10 1 1 (1.00) - 1 (1.00) 1 (1.00)
All 243 60 (1.40) 90 (1.91) 52 (1.44) 16 (0.89)
  1. Valency: the number of simple direct links between states.