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Table 3 Reported distribution of symptoms in study participants with or without pdm flu vaccination

From: Difference in immune response in vaccinated and unvaccinated Swedish individuals after the 2009 influenza pandemic

Symptoms Vaccinated Not vaccinated Difference
  N % N % p-value
Nasal discharge 43 15.1 84 14.8 0.02
Fatigue 36 12.6 68 12.0 0.04
Cough 35 12.3 61 10.7 0.01
Headache 28 9.8 62 10.9 0.4
Sneezing 35 12.3 66 11.6 0.04
Sore throat 23 8.1 65 11.4 0.7
Muscle aches or joint pain 26 9.1 48 8.4 0.08
Chills 22 7.7 36 6.3 0.05
Other symptoms 9 3.2 20 3.5 0.7
Fever 9 3.2 20 3.5 0.7
Ear pain 7 2.5 21 3.7 0.7
Chest discomfort 6 2.1 9 1.6 0.3
Diarrhea 3 1.1 5 0.9 0.5
Itch 2 0.7 4 0.7 0.8
Vomiting 1 0.4 0 0.0 0.1
Symptoms N/% 285 100 569 100  
N 65 65 170 170  
  1. Note the differential symptom presentation in participants vaccinated or not vaccinated against pdmH1N1. P values below 0.05 are indicated in bold.
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