Table 1 Age-specific incidence rates (per 100,000 person-years), and CIR of patients under prolonged mechanical ventilation

Number of new cases

9,296

12,651

12,913

15,660

17,731

19,737

21,818

21,692

20,414

19,723

17 to 34

5.1

6.1

5.5

5.8

6.1

8.4

9.9

9.2

9.4

9.9

35 to 44

10.1

10.8

11.8

14.5

14.4

15.4

19.2

17.4

19.8

18.1

45 to 54

21.8

33.3

29.3

32.4

37.2

42.0

40.5

43.5

39.5

39.7

55 to 64

78.2

101.1

92.2

102.5

111.6

118.9

129.6

119.8

101.7

93.0

65 to 74

224.0

296.5

284.5

329.2

361.9

379.8

393.9

369.2

331.8

306.4

75 to 84

622.0

817.2

814.6

967.2

1,045.5

1,072.3

1,166.4

1,036.0

1,004.6

909.2

≥85

1,182.0

1,536.0

1,702.6

2,064.1

2,253.0

2,563.9

2,584.0

2,554.0

2,161.0

2,046.0

CIR

0.103

0.133

0.132

0.153

0.165

0.173

0.183

0.170

0.159

0.145