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. 2016 Mar 31;4(1):e24. doi: 10.2196/mhealth.4546

Table 2.

Study participants’ use of each module of the mobile app for weight management in the clinic (n=30).

Aspect of use Minimum 25th
percentile
Median Mean 75th |percentile Maximum
Mean number of log-ins per daya 0.03 0.73 1.21 1.88 2.65 6.38
Numbers of clicks on each module, n (%) b

Goal setting 24.0
(36.0)
151.0
(61.5)
199.0
(74.4)
217.13
(71.3)
290.0
(77.9)
549.0
(98.8)

My personal health status 1
(0.6)
21.0
(8.9)
34.50
(10.8)
40.83
(12.3)
52.0
(16.0)
136.0
(33.7)

Educational videos and nutritional information 0.0
(0)
2
(0.9)
5.5
(1.9)
6.6
(2.1)
10.0
(2.8)
19.0
(6.7)

Tracking my physical activities 1
(0.6)
20.0
(9.6)
30.0
(13.5)
55.7
(14.3)
69.0
(18.4)
285.0
(31.9)
Mean exercise calories per weekc 46.0 1740.0 2575.0 2612.8 3211.5 7125.5
Mean percentage of weekly exercise goals achieved (%)d 3.4 87.9 125.9 141.1 167.1 601.7
Total numbers of messages posted on patient-doctor communication board 0 0 0 0.5 1 3
Total numbers of messages posted on social network servicee 0 0 0 1 0 10

aThe number of days that patients logged into the mobile app at least once during the study period.

bUsage rate of each module is calculated as the percentage of the number of clicks on each module divided by the total number of clicks on all mobile app menus during the study period.

cThe mean calories expended in exercise per week recorded by the accelerometer during the study period.

dThe mean percentage of actual exercise calories divided by suggested exercise goals per week.

eThe numbers of messages including replies that participants posted on the social network service.