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Table 8 Multivariate logistic regression analysis for schoolchildren stratified age/grade

From: Asymptomatic ratio for seasonal H1N1 influenza infection among schoolchildren in Taiwan

Age/Grade Symptom OR (95% CI) P-value
1-3 Fever 2.61 (0.68-10.05) .1628
  Sore throat 0.90 (0.15-4.47) .8945
  Cough 4.62 (1.05-65.83) .0464*
  Headache 19.78 (0.77-509.94) .0718
  Vomiting 8.12 (0.53-589.51) .1615
  Running nose 0.45 (0.06-2.04) .3157
  Stomach upset 0.45 (0.004-7.74) .6383
4-6 Fever 4.05 (1.20-13.94) .0237*
  Sore throat 2.67 (0.74-9.55) .1280
  Cough 1.37 (0.35-6.00) .6592
  Headache 2.88 (0.66-12.83) .1551
  Vomiting 4.30 (0.44-52.00) .2152
  Running nose 1.85 (0.48-8.36) .3894
  Stomach upset 1.64 (0.04-85.14) .7934
  1. *denotes statistically significant at 5% level.