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Table 2 Reliability estimates for Norwegian version of the Swallowing Quality of Life (Nor-SWAL-QOL)

From: Cultural adaptation and validation of the Norwegian version of the swallowing quality of life questionnaire (SWAL-QOL)

Nor-SWAL-QOLInternal consistencya (Cronbach’s α)n=Test-retestb (Spearman’s rs)n=Intraclass correlationc
Burden0.851010.68*340.67
Food selection0.851020.83*340.81
Eating duration0.731020.74*340.74
Eating desire0.731000.73*330.75
Fear0.801010.66*330.67
Sleep0.821010.82*340.82
Fatigue0.89980.84*340.85
Communication0.95990.85*330.88
Mental health0.911010.77*340.79
Social functioning0.91980.85*340.84
Symptom frequency battery0.87890.90*330.89
  1. aInternal consistency
  2. bTest-retest average time interval 18.5 days; *Correlation is significant at p < 0.01
  3. cIntraclass correlation coefficient (ICC)