Table 1 Patients’ characteristics

Total n (% of all patients)

33′055 (100) [100]

24′452 (74.0) [100]

8′603 (26.0) [100]

4′655 (54.1)^§ [100]

3′948 (45.9)^§ [100]

Age mean {SD}

60,0 {25.5}

58.9 {26,5}

63.2 {22,2}

61.0 {22,6}

65.8 {21,6}

NACA score < 4 n (%)

29′309 [88.7]

23′631 (80.6) [96.6]

5′678 (19.4) [66.0]

3′052 (53.8)^§ [65.6]

2′626 (46.2)^§ [66.5]

NACA score ≥ 4 n (%)

3′746 [11.3]

821 (21.9) [3.4]

2′925 (78.1) [34.0]

1′603 (54.8)^§ [34.4]

1′322 (45.2)^§ [33.5]

Children ≤18 year old (%)

2′395 [7.2]

2′108 (88.0) [8.6]

287 (12.0) [3.3]

194 (67.6)^§ [4.2]

93 (32.4) ^§ [2.4]

Adult > 18 year old (%)

30′660 [92.8]

22′344 (72.9) [91.4]

8′316 (27.1) [96.6]

4′461 (53.6)^§ [95.8]

3′855 (46.4)^§ [97.6]