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Table 1 The actual number of reported cases per sentinel and prediction results for influenza in Japan from week 1 to week 12 in 2015

From: Application of the backstepping method to the prediction of increase or decrease of infected population

Week (t) Number of reported U(t) Prediction Result
  cases per sentinel    
1 21.46
2 33.28 21.46 Increase Correct
3 37 33.28 Increase Correct
4 39.42 37 Increase Incorrect
5 29.11 39.42 Decrease Correct
6 19.03 29.11 Decrease Correct
7 12.15 19.03 Decrease Correct
8 8.26 12.15 Decrease Correct
9 5.88 8.26 Decrease Correct
10 4.32 5.88 Decrease Correct
11 3.99 4.32 Decrease Correct
12 3.85
Accuracy     0.90(=9/10)