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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Int Forum Allergy Rhinol. 2014 Jul 12;4(9):725–733. doi: 10.1002/alr.21350

Table 3.

Correlations between B-SIT baseline and change scores with baseline and change in CRS cardinal symptoms scores as measured by the SNOT-22 and RSDI

B-SIT Scores
QOL / Symptom Severity: Correlation
coefficient (rs)

Baseline Scores		 p-value Correlation
coefficient (rs)

Change Scores


p-value
Total cohort (n=280):
  Facial pain/pressure
    SNOT-22 0.068 0.255 −0.050 0.405
    RSDI Physical 0.083 0.167 −0.007 0.906
  Nasal obstruction
    SNOT-22 −0.158 0.008 −0.162 0.007
    RSDI Physical −0.043 0.478 −0.076 0.208
  Thick nasal discharge
    SNOT-22 −0.137 0.022 −0.243 <0.001
    RSDI Physical −0.190 0.001 −0.294 <0.001
CRSwNP (n=100):
  Facial pain/pressure
    SNOT-22 0.057 0.572 0.001 0.989
    RSDI Physical 0.114 0.258 −0.007 0.942
  Nasal obstruction
    SNOT-22 −0.214 0.032 −0.311 0.002
    RSDI Physical −0.020 0.845 −0.162 0.108
  Thick nasal discharge
    SNOT-22 −0.138 0.172 −0.272 0.006
    RSDI Physical −0.188 0.061 −0.403 <0.001
CRSsNP (n=180):
  Facial pain/pressure
    SNOT-22 0.049 0.515 −0.093 0.213
    RSDI Physical 0.026 0.732 −0.020 0.791
  Nasal obstruction
    SNOT-22 −0.038 0.614 −0.049 0.516
    RSDI Physical −0.061 0.420 −0.002 0.979
  Thick nasal discharge
    SNOT-22 −0.143 0.056 −0.208 0.005
    RSDI Physical −0.127 0.092 −0.184 0.015

rs, Spearman’s correlation coefficient; QOL, quality of life; SNOT-22, 22-item SinoNasal Outcome Test; RSDI, Rhinosinusitis Disability Index; CRSwNP, chronic rhinosinusitis with nasal polyposis; CRSsNP, chronic rhinosinusitis without nasal polyposis.