Year

2008

2010

2012

2014

P value^a,b

2016

2018

P value^a,b

No. of hospitalization

131,701

132,057

135,440

137,285

NA

327,649

310,915

NA

Incidence per 100,000 persons

30.89

38.26

41.05

41.01

<0.001

97.76

93.07

<0.001

Sex, %

Male

52.83

55.06

55.61

54.87

<0.001

52.59

53.25

0.02

Female

47.17

44.94

44.39

45.13

<0.001

47.41

46.75

0.03

Age, mean, y

65.32

64.85

64.81

64.81

0.19

68.43

68.53

0.31

Length of hospital stay, mean, d

4.28

4.23

4.17

4.19

0.01

4.26

4.22

0.18

Mortality rate in difference races, %, (adjusted for age and gender) ^c

White

1.95

1.99

1.83

1.80

0.19

2.49

2.46

0.78

Black

1.99

2.15

1.86

1.72

0.27

2.18

2.34

0.51

Hispanic

2.31

1.58

1.47

1.54

0.05

2.76

2.22

0.08

Other

1.55

2.61

2.39

1.15

0.54

2.59

2.78

0.63

^aP value less than 0.05 was considered significant

^bLinear P trend values

^cP-value for mortality differences among different race categories, pre-2015: 0.78, post-2015: 0.07.