Table 1.
Additional characteristics of identified engagement subgroups with the training sample (n = 336,968)
| Group 1a | Group 2b | Group 3c | Group 4d | Group 5e | Group 6f | Cramer’s V | R 2 | p value | |
|---|---|---|---|---|---|---|---|---|---|
| % or mean (SD) | % or mean (SD) | % or mean (SD) | % or mean (SD) | % or mean (SD) | % or mean (SD) | ||||
| Demographics | |||||||||
| Female | 76.6% | 74.7% | 74.2% | 78.9% | 71.3% | 75.8% | 0.0395 | p < 0.0001 | |
| Age (at set up of account) | 34.3 (12.7) | 35.1 (12.2) | 37.1 (12.5) | 36.5 (12.3) | 36.7 (11.9) | 36.8 (11.7) | 0.0089 | p < 0.0001 | |
| Start weight | 186.5 (51.1) | 192.8 (51.0) | 193.2 (50.3) | 184.5 (46.8) | 194.2 (51.3) | 187.3 (47.6) | 0.0047 | p < 0.0001 | |
| Start BMI | 30.0 (7.3) | 30.8 (7.2) | 30.8 (7.1) | 29.7 (6.6) | 30.6 (7.2) | 29.8 (6.7) | 0.0032 | p < 0.0001 | |
| Health Behaviors | |||||||||
| Weigh ins | 1.0 (0.1) | 6.7 (19.7) | 15.2 (39.4) | 25.7 (61.7) | 28.0 (69.7) | 54.9 (111.3) | 0.0950 | p < 0.0001 | |
| Exercise days logged | 1.3 (4.6) | 7.1 (22.6) | 19.4 (48.0) | 44.7 (87.5) | 37.8 (80.9) | 95.7 (152.0) | 0.1463 | p < 0.0001 | |
| Exercise calories logged | 3,265,704.7 (571,411,776.0) | 22,721,100.8 (5,252,250,786.6) |
2,858,480.4 (532,810,339.2) |
34,250,810.9 (2,068,288,681.2) |
15,591.7 (44,785.4) | 34,540,405.2 (1,857,059,497.7) |
0.0000 | p = 0.1967 | |
| Food calories logged | 2,016,766.4 (442,884,965.9) | 19,697.9 (60,550.4) | 7,330,980.0 (843,277,111.2) | 60,275,627.6 (6,735,867,555.2) |
5,202,694.7 (712,670,413.3) |
252,564.1 (393,709.7) | 0.0001 | p = 0.0006 | |
| Goal weight | 152.3 (34.1) | 155.7 (34.3) | 156.5 (33.6) | 151.7 (31.9) | 158.0 (34.1) | 153.9 (32.2) | 0.0040 | p < 0.0001 | |
| Goal plan | 1.6 (0.5) | 1.6 (0.5) | 1.6 (0.5) | 1.6 (0.5) | 1.5 (0.5) | 1.5 (0.6) | 0.0060 | p < 0.0001 | |
| App Behaviors | |||||||||
| iPhone users (% yes) | 59.4% | 63.3% | 68.5% | 70.9% | 81.6% | 84.4% | 0.1406 | p < 0.0001 | |
| Android users (% yes) | 29.0% | 34.1% | 30.2% | 29.3% | 22.1% | 23.6% | 0.0627 | p < 0.0001 | |
| Web users (% yes) | 12.1% | 6.0% | 6.7% | 6.7% | 2.9% | 2.6% | 0.1150 | p < 0.0001 | |
| One or more devices linked with app (e.g., Fitbit) (% yes) | 0.9% | 2.9% | 5.3% | 8.0% | 10.6% | 17.7% | 0.1941 | p < 0.0001 | |
| Has friends on the app (% yes) | 5.7% | 13.0% | 23.0% | 30.9% | 34.0% | 47.3% | 0.3042 | p < 0.0001 | |
| Number of friends on the app | 0.1 (0.5) | 0.2 (1.5) | 0.5 (2.2) | 1.1 (6.2) | 0.9 (4.9) | 3.8 (24.4) | 0.0188 | p < 0.0001 | |
| Is part of a group on the app (% yes) | 0.5% | 2.0% | 2.2% | 3.6% | 4.0% | 7.4% | 0.1126 | p < 0.0001 | |
| Number of groups on the app | 0.0 (0.1) | 0.0 (0.3) | 0.0 (0.3) | 0.1 (0.6) | 0.1 (0.6) | 0.3 (1.9) | 0.0119 | p < 0.0001 | |
| Has been an administrator of a challenge (% yes) | 0.0% | 0.0% | 0.0% | 0.1% | 0.2% | 0.6% | 0.0471 | p < 0.0001 | |
| Number of challenges participated in | 0.0 (0.0) | 0.0 (0.1) | 0.0 (0.0) | 0.0 (0.1) | 0.0 (0.2) | 0.0 (0.4) | 0.0012 | p < 0.0001 | |
| Number of customized goals entered | 0.0 (0.1) | 0.0 (0.4) | 0.1 (0.6) | 0.1 (0.8) | 0.2 (1.2) | 0.5 (1.8) | 0.0223 | p < 0.0001 | |
| Number of customized foods entered | 0.8 (3.7) | 0.0 (0.0) | 12.5 (29.2) | 33.0 (68.2) | 18.1 (41.3) | 53.0 (91.5) | 0.1463 | p < 0.0001 | |
| Number of customized recipes entered | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 6.6 (13.4) | 11.7 (21.4) | 0.2005 | p < 0.0001 | |
| Number of customized exercises entered | 0.1 (0.6) | 0.1 (0.9) | 0.0 (0.0) | 5.0 (17.2) | 0.0 (0.0) | 6.9 (29.1) | 0.0579 | p < 0.0001 | |
| Uses app reminders (% yes) | 0.9% | 3.1% | 6.1% | 8.6% | 9.8% | 16.4% | 0.1865 | p < 0.0001 | |
| Has a picture (% yes) | 2.3% | 7.4% | 11.3% | 18.2% | 17.0% | 30.1% | 0.2410 | p < 0.0001 | |
| Uses email reports (% yes) | 0.2% | 0.7% | 1.9% | 3.3% | 3.6% | 6.8% | 0.1301 | p < 0.0001 | |
a3.5 days active (n = 153,134)
b16 days active (n = 61,625)
c45 days active (n = 70,452)
d81 days active (n = 23,371)
e85 days active (n = 9689)
f172 days active (n = 8697).