Table 1

Characteristics of study participants by AF status weighted for age and sex of the population in Mainz and Mainz-Bingen area (weighted n=14 937)

No AF (n=14 557)Known AF (n=355)New AF (n=25)
Age, years52.3±11.063.2±9.564.9±9.1
Female, %50.6 (49.8–51.4)34.4 (29.5–39.3)14.1 (0.5–27.7)
Current smoking,%20.9 (20.2–21.6)13.4 (9.9–17.0)24.7 (7.8–41.6)
Body mass index, kg/m²26.4 (23.7/29.8)28.4 (25.9/32.0)27.4 (26.1/33.4)
Systolic blood pressure, mm Hg128 (118/139)131 (120/142)136 (120/147)
Diastolic blood pressure, mm Hg82 (76/88)80 (74/87)84 (77/92)
Heart rate, bpm69 (62/75)67 (58/76)77 (68/88)
Diabetes, %6.0 (5.6–6.4)14.5 (10.8–18.2)23.6 (7.0–40.3)
Hypertension, %44.5 (43.7–45.3)70.1 (65.3–74.9)66.7 (48.2–85.2)
Dyslipidaemia, %27.7 (27.0–28.4)43.7 (38.5–48.9)30.5 (12.5–48.6)
Prevalent myocardial infarction, %2.1 (1.9–2.3)14.7 (11.0–18.4)6.4 (0–16.0)
Prevalent stroke, %1.4 (1.2–1.6)8.7 (5.8–11.6)0
Heart failure, %16.4 (15.8–17.0)44.3 (39.1–49.5)41.7 (22.4–61.0)
Dyspnoea, %10.7 (10.2–11.2)30.8 (26.0–35.6)22.1 (5.8–38.4)
Palpitations, %15.2 (14.6–15.8)46.5 (41.3–51.7)25.9 (8.7–43.1)
NT-proBNP (pmol/L)*61 (31/115)261 (80/948)868 (276/1951)
Thyroid-stimulating hormone (mU/L)1.04 (0.73/1.47)1.0 (0.7/1.4)1.06 (0.64/1.28)
C reactive protein (mg/L)1.5 (0.5/3.1)2.1 (1.0/4.2)2.9 (1.2/4.3)
  • Mean values and SD for continuous variables, median and 25th/75th percentiles for skewed continuous variables, or per cent and a 95% CI for categorical variables.

  • *Available for the first 5000 study participants.

  • AF, atrial fibrillation; Nt-proBNP, N-terminal pro B-type natriuretic peptide.