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. 2016 Aug 19;4(3):e99. doi: 10.2196/mhealth.5411

Table 1.

Demographic variables of both groups at baseline.

Demographic variables
Intervention group
(n=41)
Control group
(n=41)


M SD % M SD %
Sex (male)


24.4

26.8
Age (years)
21.37 3.60
21.02 4.76
Body mass index
24.57 3.56
23.22 3.54
Hours of class per week
15.63 7.42
15.67 6.73
Hours of work per week
6.33 8.99
5.94 10.35
Type of student

Undergraduate

87.8

78

Graduate student

12.2

17

Other

0

4.8
Physical activity

Moderatea 184.15 269.40 203.54 183.98

Harda 94.12 120.63


83.24 121.42



Very Harda 93.23 113.23 97.61 131.70
Days with hard
2.80 2.34 2.93 2.40
Days with moderate
4.25 3.61
4.34 2.66

aExpressed in minutes per week