Table 2. Sample variation between the two different recruitment methods
Sample 1+2:Sample 1:Sample 2:
n%n%n%
Total responders without GP part 527383144
Sex
Female29856.5%23060.1%6847.2%
Male22943.5%15339.9%7652.8%
Age, years
65–6914026.6%10326.9%3725.7%
70–7414427.3%10727.9%3725.7%
75–7912523.7%8321.7%4229.2%
80–847514.2%5915.4%1611.1%
≥85438.2%318.1%128.3%
Depressive (PHQ-9) level
None (<5)34164.7%24864.8%9364.6%
Mild (5–9)12623.9%9123.8%3524.3%
Moderate (10–19)5310.1%3910.2%149.7%
Severe (20–29)71.3%51.3%21.4%
Mean values Mean ± SD Mean ± SD Mean ± SD
Mean age74.50±6.6 years74.54±6.6 years74.48±6.7 years
Mean SHC score11.15±8.9511.26±9.0710.92±8.65
Mean PHQ-9 score4.36±4.444.30±4.394.55±4.59
Mean GAD-7 score2.87±3.642.71±3.373.28±4.27
  • GAD-7 = General Anxiety Disorder 7-item scale. PHQ-9 = Patient Health Questionnaire-9. SHC = subjective health complaints.