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Table 3 The incidence risks of vomiting in the different observational periods from seven weeks to 24/25 months of age.

From: A longitudinal study on diarrhoea and vomiting in young dogs of four large breeds

  Observational periods
Breed 7 weeks to
3 months
3 to 4 months 4 to 6 months 6 to 12 months 12 to18 months 18 to 25 months
LEO 19/209 17/194 19/181 12/153 6/131 4/110
  9.1% 8.8% 10.5% 7.8% 4.6% 3.6%
  (5.9 - 13.8) (5.5 - 13.6) (6.8 - 15.8) (4.5 - 13.2) (2.1 - 9.6) (1.4 - 9.0)
NF 9/137 2/129 1/123 0/100 2/85 1/60
  6.6% 1.6% 0.8% 0% 2.3% 1.7%
  (3.5 -12.0) (0.4 - 5.5) (0.1 - 4.5) (0.0-3.6) (0.6 - 8.2) (0.3 - 8.9)
LR 11/148 13/144 10/140 7/122 5/87 7/90
  7.4% 9.0% 7.1% 5.7% 5.7% 7.8%
  (4.2 - 12.8) (5.4 - 14.8) (3.9 - 12.6) (2.8 - 11.4) (2.5 - 12.8) (3.8 - 15.2)
IW 2/81 5/79 5/70 4/55 2/45 0/34
  2.5% 6.3% 7.1% 7.3% 4.4% 0%
  (0.7 - 8.6) (2.7 - 14.0) (3.1 - 15.7) (2.9 - 17.3) (1.2 - 14.8) (0.0-10.3)
Total 41/575 37/546 35/514 23/430 15/348 12/294
  7.1% 6.8% 6.8% 5.3% 4.3% 4.1%
  (5.3 -9.5) (5.0 -9.2) (4.9 -9.3) (3.6 -7.9) (2.6 -7.0) (2.4 -7.0)
  1. The study period is divided into six different observational periods, according to the given observational ages. Incidence risks are reported as percentages with 95% confidence intervals in brackets, with the number of episodes of vomiting in the numerator and the total number of reports retrieved at the observational ages as denominator. Leonberger (LEO), Newfoundland (NF), Labrador retriever (LR), and Irish wolfhound (IW).