Table 1.
Demographic characteristics of participants (N=39).
| Characteristics | N (%) | |
| Gender |
|
|
|
|
Male | 18 (46.2) |
|
|
Female | 21 (53.9) |
| BMIa (mean, SDd) |
|
24.58 (4.3) |
| Age (mean, SD) |
|
15.90 (1.2) |
| Grade in schoolb |
|
|
|
|
9 | 9 (23.7) |
|
|
10 | 11 (29.0) |
|
|
11 | 9 (23.7) |
|
|
12 | 9 (23.7) |
| Ethnicityc |
|
|
|
|
White | 7 (18.4) |
|
|
Black or African-American | 1 (2.6) |
|
|
Hispanic/Latino | 25 (65.8) |
|
|
Asian | 4 (10.5) |
|
|
Other | 1 (2.6) |
| Mobile phone platform |
|
|
|
|
Google Android | 27 (69.2) |
|
|
Apple iOS | 12 (30.8) |
| Mobile phone device used | Loaned mobile phone | 22 (56.4) |
|
|
Personal mobile phone | 17 (43.6) |
aBMI: body mass index.
bInformation on grade in school was not reported for 1 participant.
cEthnicity was not reported for 1 participant.
dSD: standard deviation.