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Table 1 Sample characteristics of the clinical and the population-based sample

From: Persistent depressive disorder across the adult lifespan: results from clinical and population-based surveys in Germany

 Clinical sample1
(n = 45)
DEGS1-MH2
(n = 4408)
Cohen’s d
Sex, % (95% CI)
 Male53.3 (37.8–66.7)49.1 (47.1–51.0)0.84
 Female46.7 (33.3–62.2)50.9 (49.0–52.9)0.84
Age, mean (95% CI)47.1 (43.6–50.6)48.0 (47.4–48.6)0.18
Age group (years), % (95% CI)
 18–3422.2 (12.1–37.2)24.8 (23.1–26.5)0.61
 35–4924.4 (13.8–39.6)29.2 (27.5–30.9)1.07
 50–6451.1 (36.3–65.8)25.4 (24.0–26.9)5.83
 65–792.2 (0.3–15.1)20.7 (19.4–22.0)4.53
Marital status3, % (95% CI)
 Married and living with partner11.1 (2.2–20.0)60.8 (58.5–63.2)26.87
 Married and not living with partner/Single/Divorced/Widowed88.9 (80.0–97.8)39.2 (36.9–41.6)10.18
Educational level4, % (95% CI)
 Low2.3 (0.0–6.8)35.0 (32.6–37.6)6.90
 Medium36.4 (22.7–52.3)50.8 (48.7–52.9)2.89
 High61.4 (47.7–45.0)14.2 (12.6–16.0)13.51
  1. CI confidence interval, CIDI Composite International Diagnostic Interview, Cohen’s d effect size computed for groups with different sample size, by adjusting the calculation of the pooled standard deviation with weights for the sample sizes
  2. 1Clinical Sample at Charité - Universitätsmedizin Berlin: 2018–2019; n = 45 re-participants based on n = 60 patients who participated in inpatient treatment with the Cognitive Behavioral Analysis System of Psychotherapy (CBASP [40]), age range: 24–66 years
  3. 2German Health Interview and Examination Survey for Adults, mental health module (DEGS1-MH): 2009–2012, weighted for population structure as of 31st December 2010; age range: 18–79 years; n = 4408 with full CIDI mood disorders section
  4. 3In DEGS1-MH, n = 32 subjects did not provide information on marital status
  5. 4Categorization according to the Comparative Analysis of Social Mobility in Industrial Nations (CASMIN) scale. There were missing values for n = 1 subject in the clinical sample and n = 17 participants in the DEGS1-MH sample