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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