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. 2022 Jan 11;10(1):e26563. doi: 10.2196/26563

Table 4.

Base demographics for all participants and for those assigned to the test group (A) and validation group (B).

Characteristic Group A (n=191), n (%) Group B (n=191), n (%) Total (N=382), n (%) P valuea
Age group (years) .87

21-30 9 (4.7) 7 (3.7) 16 (4.2)

31-40 34 (17.8) 42 (22.0) 76 (19.9)

41-50 46 (24.1) 44 (23.0) 90 (23.6)

51-60 62 (32.5) 59 (30.9) 121 (31.7)

>60 40 (20.9) 39 (20.4) 79 (20.7)
Gender .38

Female 24 (12.6) 30 (15.7) 54 (14.1)

Male 167 (87.4) 161 (84.3) 328 (85.9)
Work experience .93

Not yet working 2 (1.0) 1 (0.5) 3 (0.8)

<1 year 2 (1.0) 2 (1.0) 4 (1.0)

1-5 years 10 (5.2) 14 (7.3) 24 (6.3)

6-10 years 19 (9.9) 25 (13.1) 44 (11.5)

11-20 years 50 (26.2) 44 (23.0) 94 (24.6)

21-30 years 54 (28.3) 50 (26.2) 104 (27.2)

>30 years 44 (23.0) 46 (24.1) 90 (23.6)

Retired 10 (5.2) 9 (4.7) 19 (5.0)
Professional level .75

Student 1 (0.5) 0 (0.0) 1 (0.3)

In training/resident 23 (12.0) 25 (13.1) 48 (12.6)

Attending 60 (31.4) 52 (27.2) 112 (29.3)

Chief 38 (19.9) 39 (20.4) 77 (20.2)

Specialist (private practice) 47 (24.6) 48 (25.1) 95 (24.9)

Other 21 (11.0) 27 (14.1) 48 (12.6)

Not answered 1 (0.5) 0 (0.0) 1 (0.3)
Work setting .49

Acute care: standard care level 63 (33.0) 50 (26.2) 113 (29.6)

Acute care: maximum care level 32 (16.8) 37 (19.4) 69 (18.1)

University hospital 21 (11.0) 29 (15.2) 50 (13.1)

Rehabilitation center 8 (4.2) 7 (3.7) 15 (3.9)

Medical care center 6 (3.1) 9 (4.7) 15 (3.9)

Private practice 40 (20.9) 44 (23.0) 84 (22.0)

Other 21 (11.0) 14 (7.3) 35 (9.2)

Not answered 0 (0.0) 1 (0.5) 1 (0.3)
Geographic locationb .26

Germany 187 (98.9) 183 (95.8) 370 (97.4)

Austria 0 (0.0) 2 (1.0) 2 (0.5)

Switzerland 2 (1.1) 3 (1.6) 5 (1.3)

Other: European Union 0 (0.0) 2 (1.0) 2 (0.5)

Other: not yet listed 0 (0.0) 1 (0.5) 1 (0.3)
Interest in digital technology .71

Highly interested 76 (39.8) 81 (42.4) 157 (41.1)

Interested 84 (44.0) 75 (39.3) 159 (41.6)

Neutral 19 (9.9) 25 (13.1) 44 (11.5)

Less interested 8 (4.2) 8 (4.2) 16 (4.2)

Not interested 4 (2.1) 2 (1.0) 6 (1.6)
Uses apps in private settings .92

Yes 69 (36.1) 70 (36.6) 139 (36.4)

No 122 (63.9) 121 (63.4) 243 (63.6)
Uses apps for work .29

Yes 63 (33.0) 73 (38.2) 136 (35.6)

No 128 (67.0) 118 (61.8) 246 (64.4)
Been asked about an app/recommendation >.99

Yes 43 (22.5) 43 (22.5) 86 (22.5)

No 148 (77.5) 148 (77.5) 296 (7.5)

aPearson χ2 test.

bNot answered: group A, n=2.