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Table 12 Risk of febrile seizures in children 3–5 years old by month of year

From: Snotwatch: an ecological analysis of the relationship between febrile seizures and respiratory virus activity

Month

Risk Ratio

99% CI

P-value

January

1.03

0.57, 1.83

0.91

February

1.28

0.74, 2.22

0.24

March

1.18

0.67, 2.07

0.45

April (Reference)

1.00

May*

1.77

1.06, 2.96

< 0.0044

June*

2.87

1.78, 4.64

< 0.0001

July*

2.56

1.58, 4.17

< 0.0001

August*

3.49

2.18, 5.57

< 0.0001

September*

3.00

1.86, 4.83

< 0.0001

October*

1.74

1.04, 2.93

0.0056

November*

1.74

1.04, 2.93

0.0056

December

1.44

0.84, 2.46

0.083

  1. Intercept denotes estimated number of febrile seizures in this age group in April. Statistically significant months are denoted with*. The baseline monthly number of febrile seizures for this subgroup was 3.9