Table 1 Reliability assessment for alcohol intake in the test–retest study

From: Low-to-moderate alcohol intake and breast cancer risk in Chinese women

Alcohol intake (ml per day)

First interview Mean (s.d.)

Second interview Mean (s.d.)

Pearson correlation

Intraclass correlation

Beer

0.15 (0.49)

0.23 (0.81)

0.98

0.87

Wine

0.06 (0.21)

0.11 (0.56)

0.76

0.51

Liquor

0.03 (0.11)

0.02 (0.08)

0.71

0.67