TABLE 2.

Pearson correlation matrix for overnight fasting duration¹ measured with ≤ 6 automated self-administered 24-h dietary recalls measured over 12-mo in the Interactive Diet and Activity Tracking in AARP (IDATA) study

Number of recalls	1	2	3	4	5	6
1	1.00
2	0.21	1.00
3	0.29	0.33	1.00
4	0.24	0.30	0.32	1.00
5	0.22	0.28	0.36	0.33	1.00
6	0.24	0.23	0.27	0.28	0.34	1.00

¹Duration of overnight fasting (in h) was estimated by calculating the time between the first and the last eating episode of the day and subtracting from 24-h.