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Table 4 Time from appearance of first PAH symptoms and diagnosis

From: Epidemiology and long-term survival of pulmonary arterial hypertension in the Czech Republic: a retrospective analysis of a nationwide registry

PAH subtype Time between first symptoms and diagnosis (months)
  Total (n = 156) Prevalent cases (n = 79) Incident cases (n = 77) p*
Idiopathic     
Mean (SD) 36 (42) 36 (42) 37 (44) 0.742
Median (25th-75th; 5th-95th) 23 (10–49/2–120) 22 (7–48/1–120) 24 (10–60/2–96)  
APAH-CHD     
Mean (SD) 52 (63) 31 (45) 62 (69) 0.244
Median (25th-75th; 5th-95th) 24 (8–96/0–251) 21 (2–24/0–120) 36 (24–96/1–251)  
APAH-CTD     
Mean (SD) 31 (46) 47 (59) 13 (8) 0.139
Median (25th-75th; 5th-95th) 12 (8–24/2–192) 24 (12–60/6–192) 12 (6–15/2–24)  
Heritable     
Mean (SD) 51 (93) 15 (13) 69 (114) 0.605
Median (25th-75th; 5th-95th) 13 (10–24/5–240) 15 (5–24/5–24) 13 (10–14/10–240)  
Total     
Mean (SD) 39 (48) 36 (43) 42 (52) 0.523
Median (25th-75th; 5th-95th) 24 (10–49/1–120) 22 (8–48/1–120) 24 (10–60/2–120)  
  1. APAH-CHD, pulmonary arterial hypertension associated with congenital heart disease; APAH-CTD, pulmonary arterial hypertension associated with connective tissue disease.
  2. *Difference between prevalent and incident cases Mann–Whitney U test.