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Table 2 Average crude incidence and prevalence rates and average annual rate of change per 100,000 population across ICD periods

From: Control charts for chronic disease surveillance: testing algorithm sensitivity to changes in data coding

Algorithm

ICDA-8 Period (1975-1979)

ICD-9 Period (1980-2004)

ICD-9/10 Period (2005 onwards)a

Average Rate

Average Annual Rate Change

Average Rate

Average Annual Rate Change

Average Rate

Average Annual Rate Change

Incidence

 1: 1 + H or 1 + P

87.38

−0.32

98.31

2.36

134.80

0.67

 1: 1 + H or 2 + P

26.76

−0.79

29.22

0.99

51.69

1.93

 1: 1 + H or 3 + P

18.22

0.32

23.01

0.67

40.47

1.57

 1: 1 + H or 4 + P

16.70

0.23

20.07

0.75

35.74

1.39

 2: 1 + H or 1 + P

175.38

−9.46

200.75

4.63

276.18

1.30

 2: 1 + H or 2 + P

54.72

−3.87

62.85

1.72

114.45

3.85

 3: 1 + H or 1 + P

261.95

−12.38

309.36

6.74

424.79

−0.58

 3: 1 + H or 2 + P

82.45

−5.05

100.45

2.68

182.26

5.03

 1: 1 + P

86.50

−0.01

97.59

2.32

133.88

0.61

 1: 2 + P

12.80

0.67

16.69

0.82

35.40

1.56

 2: 1 + P

173.77

−8.84

199.43

4.57

274.02

1.21

 2: 2 + P

31.97

−1.29

43.25

1.40

89.44

3.52

 2: 3 + P

22.44

0.20

31.46

1.12

64.31

2.40

 2: 4 + P

16.69

0.05

24.11

0.92

47.83

2.10

 2: 5 + P

12.77

0.39

17.07

0.70

34.10

1.88

Prevalence

 1: 1 + H or 1 + P

180.09

0.47

213.67

5.49

349.73

5.58

 1: 1 + H or 2 + P

104.60

−0.55

127.97

3.77

244.72

6.51

 1: 1 + H or 3 + P

85.42

−0.63

99.48

2.40

202.88

6.56

 1: 1 + H or 4 + P

73.62

0.09

74.61

1.38

142.33

5.81

 2: 1 + H or 1 + P

276.62

−9.59

323.62

7.92

499.01

5.63

 2: 1 + H or 2 + P

146.55

−4.22

177.70

4.82

322.96

7.96

 3: 1 + H or 1 + P

366.82

−13.33

435.26

10.00

651.70

4.65

 3: 1 + H or 2 + P

178.73

−5.12

219.52

5.85

394.79

9.48

 1: 1 + P

178.64

1.09

212.60

5.43

348.53

5.47

 1: 2 + P

84.18

1.37

111.15

3.46

223.79

6.12

 1: 3 + P

61.25

1.53

74.05

2.27

168.32

5.44

 1: 4 + P

39.86

1.05

38.30

0.56

79.70

3.61

 2: 1 + P

274.52

−8.66

322.03

7.86

496.59

5.54

 2: 2 + P

120.45

−1.41

155.94

4.47

295.29

7.61

 2: 3 + P

101.23

0.27

134.93

4.10

260.28

6.53

 2: 4 + P

85.69

2.64

114.84

3.62

231.71

6.32

 2: 5 + P

73.78

2.56

90.84

3.02

198.22

6.56

  1. aUntil 2016 for algorithms with a three-year observation window; 2017 for algorithms with a two-year observation window; 2018 for algorithms with a one-year observation window