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

Table 7

Mean values (converted to grams) and interquartile ranges (Q25–Q75) for test and retest dietary intake data for finfish, shrimp, oyster, and blue crab, from coastal and noncoastal household members. Differences between initial test data and follow-up retest data for each seafood type, in both participant groups, were not detected with α = 0.05 using Mann–Whitney U-test ( values ranged from 0.61–0.93).

	Coastal participants				Noncoastal participants
	Test		Retest		Test		Retest
Seafood type	Mean	Q25-Q75	Mean	Q25-Q75	Mean	Q25-Q75	Mean	Q25-Q75
Fish	3.4	2.0–3.7	3.4	2.0–3.7	10.5	2.0–3.7	10.2	0.9–3.7
Shrimp	3.1	2.0–3.7	3.1	2.0–3.7	2.6	0.6–3.7	2.6	0.6–3.7
Oyster	1.1	0.0–2.0	1.1	0.0–0.9	0.6	0.0–0.6	0.6	0.0–0.6
Blue crab	0.9	0.0–0.9	0.9	0.0–0.9	0.6	0.0–0.9	0.6	0.0–0.6