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Table 2 The Ottawa Valve Collapse Scale Test-Retest Results

From: Reliability and construct validity of the Ottawa valve collapse scale when assessing external nasal valve collapse

  Visit 1 Score
Visit 2 Score   0 1 2 3
0 28 7 2 0
1 5 10 5 0
2 2 6 20 3
3 0 0 2 2