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. 2020 Feb 3;22(2):e13266. doi: 10.2196/13266

Table 1.

Size and energy contents of meals reported with conventional and progressive 24-hour recall methods.

Meal Number of foods, mean (SD) Energy (kcal), mean (SD)

24 hours Progressive P value 24 hours Progressive P value
Afternoon snack or drink 2.7 (1.2) 2.7 (1.5) .43 325.0 (433.1) 217.9 (263.4) .30
Breakfast 3.6 (1.6) 3.8 (1.7) .51 373.5 (383.9) 318.2 (205.0) .41
Early snack or drink 2.6 (1.7) 2.1 (1.1) .19 120.8 (145.3) 126.1 (192.0) .87
Evening meal 4.2 (1.9) 5.2 (1.8) .005 655.3 (378.0) 732.8 (404.3) .32
Late snack or drink 2.3 (1.0) 3.0 (2.0) .31 372.4 (426.2) 318.4 (362.5) .74
Lunch 3.9 (1.8) 4.0 (1.8) .68 592.6 (349.1) 491.3 (255.3) .09
Late snack or drink 2.3 (1.0) 3.0 (2.0) .31 372.4 (426.2) 318.4 (362.5) .74
Full day 12.7 (5.5) 13.9 (6.1) .12 1668.9 (851.3) 1529.7 (834.7) .18