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Table 3 Rate and duration of cough episodes

From: Acute cough in Italian children: parents’ beliefs, approach to treatment, and the family impact

  Total population Parents’ smoking status Geographical distribution
Both smoking One smoking None smokers North-West North-Est Center South and Islands
% child with cough episodes 91.06% 95.92% 90.81% 90.56% 89.47% 94.74% 91.54% 88.82%
Number of episodes (mean episodes per year) 3.15 3.34 3.14 3.13 3.03 3.25 3.13 3.17
 1–2 episodes 44.91% 38.30% 42.70% 46.96% 47.79% 42.36% 45.38% 44.37%
 3–5 episodes 41.64% 46.81% 47.03% 37.70% 41.18% 42.36% 41.18% 41.72%
  > 5 episodesa 13.45% 14.89% 10.27% 15.34% 11.03% 15.28% 13.45% 13.91%
Length of episodes (mean days per episode) 8.42 9.06 8.50 8.27 9.15 8.22 8.36 8.02
  < 7 days 40.91% 31.91% 39.46% 43.45% 35.29% 40.28% 44.54% 43.71%
 7–15 days 53.64% 61.70% 55.68% 50.80% 56.62% 56.25% 49.58% 51.66%
 16–30 days 4.73% 6.38% 3.78% 5.11% 7.35% 2.78% 4.20% 4.64%
  >  30 days 0.73% 0.00% 1.08% 0.64% 0.74% 0.69% 1.68% 0.00%
  1. aMaximum number of episodes per year is 7. This limit was estimated fitting a Poisson distribution on the frequencies recorded in the questionnaires