Journal of Environmental and Public Health / 2020 / Article / Tab 5

Research Article

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

Table 5

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 . Power calculations for sample size of n = 42, based on results on Pearson’s correlation from Fisher’s z-test for monthly, daily, and portion categories are included for each seafood type.

dsdsConsumption VariableCoastalNoncoastalSample power (based on n = 42)
Weighted kappa coefficientWeighted kappa coefficient

FishYearly consumption (month)0.951.00>0.999
Yearly consumption (day)0.951.00>0.999
Portion size0.960.89>0.889

ShrimpYearly consumption (month)0.800.98>0.999
Yearly consumption (day)0.810.98>0.999
Portion size0.960.63>0.986

OysterYearly consumption (month)0.980.89>0.999
Yearly consumption (day)0.980.86>0.999
Oyster portion size0.940.91>0.993

Blue crabYearly consumption (month)0.990.83>0.999
Yearly consumption (day)0.980.85>0.999
Portion size0.870.97>0.697

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