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. 2020 Nov 20;22(11):e18826. doi: 10.2196/18826

Table 3.

Relationships between sociodemographic user characteristics and measures of engagement.

Measures, Groups Mean (SD) t (df)a Wb P valuec
FMBd T1e, Gender 0.44 (295.52) N/Af >.99

Females (n=170) 187.74 (154.11)



Males (n=136) 180.18 (145.86)


FMB T2g, Gender –0.13 (291.19) N/A >.99

Females (n=170) 24.76 (56.17)



Males (n=136) 25.63 (55.35)


SRUh T1, Gender N/A 5075.5 >.99

Females (n=113) 2.78 (1.24)



Males (n=87) 2.87 (1.12)


SRU T2, Gender N/A 4563 >.99

Females (n=102) 2.5 (1.12)



Males (n=81) 2.7 (1.1)


FMB T1, Relationship status 3.31 (198.94) N/A .02

Single (n=178) 209.80 (115.76)



Nonsingle (n=128) 149.02 (182.79)


FMB T2, Relationship status –0.37 (154.48) N/A >.99

Single (n=178) 24.02 (30.36)



Nonsingle (n=128) 26.72 (78.52)


SRU T1, Relationship status N/A 6883.5 <.001

Single (n=142) 3.24 (0.99)



Nonsingle (n=58) 1.79 (1.00)


SRU T2, Relationship status N/A 4832 <.001

Single (n=140) 2.89 (.93)



Nonsingle (n=43) 1.61 (1.09)


FMB T1, With/Without children 1.39 (128.68) N/A >.99

No children (n=214) 193.41 (129.18)



One or more children (n=92) 163.37 (189.78)


FMB T2, With/Without children –0.07 (127.66) N/A >.99

No children (n=214) 24.98 (47.78)



One or more children (n=92) 25.54 (71.14)


SRU T1, With/Without children N/A 5003 <.001

No children (n=159) 3.05 (1.12)



One or more children (n=41) 1.93 (1.01)


SRU T2, With/Without children N/A 3801.5 <.001

No children (n=151) 2.8 (1.03)



One or more children (n=32) 1.63 (0.98)


FMB T1, Educational qualification –3.38 (200.88) N/A .02

No Abitur (n=187) 208.57 (129.06)



Abitur (n=119) 146.39 (172.49)


FMB T2, Educational qualification –0.004 (176.6) N/A >.99

No Abitur (n=187) 25.16 (43.94)



Abitur (n=119) 25.13 (70.57)


SRU T1, Educational qualification N/A 6596.5 <.001

No Abitur (n=145) 3.21 (.99)



Abitur (n=55) 1.78 (1.03)


SRU T2, Educational qualification N/A 5300 <.001

No Abitur (n=138) 2.95 (.92)



Abitur (n=45) 1.49 (.92)


FMB T1, Job qualification –2.93 (115.15) N/A .07

Nonacademic field (n=228) 200.26 (140.12)



Academic field (n=78) 137.95 (169.33)


FMB T2, Job qualification 0.48 (93.81) N/A >.99

Nonacademic field (n=228) 23.99 (44.58)



Academic field (n=78) 28.53 (80.13)


SRU T1, Job qualification N/A 4622.5 <.001

Nonacademic field (n=166) 3.06 (1.08)



Academic field (n=34) 1.65 (.98)


SRU T2, Job qualification N/A 3656 <.001

Nonacademic field (n=153) 2.79 (1.02)



Academic field (n=30) 1.57 (1.01)


FMB T1, Job status –0.87 (55.48) N/A >.99

No work (n=47) 206.06 (191.52)



Work (n=259) 180.44 (141.65)


FMB T2, Job status –1.09 (52.93) N/A >.99

No work (n=47) 36.17 (79.13)



Work (n=259) 23.15 (50.27)


SRU T1, Job status N/A 1272.5 .001

No work (n=28) 2 (.94)



Work (n=172) 2.95 (1.17)


SRU T2, Job status N/A 774 .004

No work (n=19) 1.68 (1)



Work (n=164) 2.7 (1.08)


aWelch’s t test.

bWilcoxon signed rank/Mann-Whitney U tests.

cP values are Holm-corrected.

dFMB: five-minute blocks of activity.

eT1: period from baseline to first post-assessment (90 days).

fN/A: not applicable.

gT2: period from first to second post-assessment (90 days).

hSRU: self-reported usage.