Test-Retest Reliability of a Food Frequency Questionnaire to Assess Seafood Intake Dynamics for High-End Consumers in Coastal Gulf of Mexico Communities

Table 4

Weighted kappa coefficients for coastal and noncoastal household members’ typical yearly, daily, and monthly consumption estimates and typical portion sizes of finfish, shrimp, oyster, and blue crab. Weighted kappa coefficients for all test-retest outputs had .

	Consumption variable	Coastal	Noncoastal
		Weighted kappa coefficient	Weighted kappa coefficient
Fish	Yearly consumption (month)	0.95	1.00
	Yearly consumption (day)	0.95	1.00
	Portion size	0.96	0.89
Shrimp	Yearly consumption (month)	0.80	0.98
	Yearly consumption (day)	0.81	0.98
	Portion size	0.96	0.63
Oyster	Yearly consumption (month)	0.98	0.89
	Yearly consumption (day)	0.98	0.86
	Oyster portion size	0.94	0.91
Blue crab	Yearly consumption (month)	0.99	0.83
	Yearly consumption (day)	0.98	0.85
	Portion size	0.87	0.97