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. 2021 May 7;16(5):e0251276. doi: 10.1371/journal.pone.0251276

Table 1. Demographic characteristics (at baseline).

IG CG Total sample
n = 181 n = 182 n = 363
Age in years, mean (SD) 50.07 (8.51) 49.8 (7.98) 49.93 (8.24)
Education (highest degree)
 basic-level high school (Hauptschule) 2 7 9
 medium-level high school (Mittlere Reife) 32 32 64
 higher-level high school (Fachhochschulreife) 19 17 36
 highest-level high school (Abitur) 14 14 28
 vocational education (Berufsausbildung) 30 24 54
 university degree 76 76 152
 other educational qualification 8 12 20
Employment status
 employed (full-time) 53 61 114
 employed (part-time) 76 64 140
 unemployed 37 35 72
 other 15 22 37
Family status
 married 127 122 249
 married (separated) 6 7 13
 single 9 14 23
 partnership 25 27 52
 divorced 11 10 21
 widowed 3 2 5
Recurrence (past 3 months)
 none 165 164 329
 1 12 17 29
 >1 4 1 5
Respiratory infection (past 3 months)
 none 109 107 216
 ≥ 1 72 75 147
Unplanned Physician Visits (past 3 months)
 none 79 83 162
 ≥ 1 102 99 100

Note. IG: intervention group, CG: control group, SD: standard deviation.