. Author manuscript; available in PMC: 2016 Nov 8.

Published in final edited form as: Chemosens Percept. 2015 Aug 7;8(3):138–148. doi: 10.1007/s12078-015-9194-7

Table 4.

Six-month test-retest reliability measures for NHANES Taste and Smell Questionnaire (CSQ) items

CSQ items	Agreement coefficient (AC₁)^a	Agreement
Smell problems during past 12 months (yes/no)	0.86 (0.78–0.95)	Excellent
Smell loss since 25 years old (better/worse/no change)	0.90 (0.80–0.99)	Excellent
Taste problems during past 12 months (yes/no)	0.78 (0.64–0.92)	Excellent
Salt taste loss since 25 years old (better/worse/no change)	0.76 (0.53–0.99)	Excellent
Sour taste loss since 25 years old (better/worse/no change)	0.86 (0.75–0.97)	Excellent
Sweet taste loss since 25 years old (better/worse/no change)	0.69(0.51–0.87)	Good
Bitter taste loss since 25 years old (better/worse/no change)	0.76 (0.52–0.99)	Excellent
Food flavor loss since 25 years old (yes/no)	0.66 (0.52–0.80)	Good

Interpretation of AC₁: <0.40 (poor agreement), 0.40–0.59 (fair agreement), 0.60–0.74 (good agreement), ≥0.75 (excellent agreement)