Table 2.
Evaluation of participants’ set of skills when capturing images with the mobile telephone food record.
| Skill | Adolescents (n = 78) | Adults (n = 56)a | |||||
| Yes, n (%) |
No, n (%) |
Software errorb, n (%) |
Yes n (%) |
No, n (%) |
Software error, n (%) |
||
| All foods and beverages included in image | |||||||
| Meal session 1c | 61 (78%) | 7 (9%) | 10 (13%) | 53 (95%) | 0 (0%) | 3 (5%) | |
| Meal session 2 | 59 (84%) | 9 (13%) | 2 (3%) | 23 (96%) | 0 (0%) | 1 (4%) | |
| Dessert session 1d | NAe | NA | NA | 39 (100%) | 0 (0%) | 0 (0%) | |
| Dessert session 2d | NA | NA | NA | 14 (93%) | 0 (0%) | 1 (7%) | |
| Entire fiducial marker included in image | |||||||
| Meal session 1 | 54 (69%) | 14 (18%) | 10 (13%) | 44 (79%) | 9 (16%) | 3 (5%) | |
| Meal session 2 | 53 (76%) | 15 (21%) | 2 (3%) | 18 (75%) | 5 (21%) | 1 (4%) | |
| Dessert session 1d | NA | NA | NA | 37 (95%) | 2 (5%) | 0 (0%) | |
| Dessert session 2d | NA | NA | NA | 11 (73%) | 3 (20%) | 1 (7%) | |
a Due to software programming error, n = 56 instead of 57.
b Paired images unavailable due to software programming errors.
c P = .008 using chi-square and comparing adolescents versus adults.
d Dessert was served as a separate course for adult participants. For meal session 1, 39 selected dessert, and for meal session 2, 15 selected dessert.
e Not applicable.