Table 3 EDQ test-retest reliability

EDQ Version

n

Visit 1,

Mean (SD)

Visit 2,

Mean (SD)

Difference Score^a

T-value

P-value^b

ICC

Monthly recall

1130

1.60 (0.41)

1.63 (0.42)

0.03 (0.35)

2.83

0.0048

0.63

EDQ Version

n

Day 1/Visit 2, Mean (SD)

Day 7/Visit 2, Mean (SD)

Difference Score^a

T-value

P-value^b

ICC

Daily recall

848

1.46 (0.49)

1.45 (0.55)

−0.01 (0.60)

− 0.25

0.8062

0.33