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. Author manuscript; available in PMC: 2013 Sep 4.
Published in final edited form as: N Engl J Med. 2011 Dec 8;365(23):2178–2187. doi: 10.1056/NEJMoa1101245

Table 1. Frequency of Solicited Reports of Adverse Events during the First 7 Days after Vaccine Administration, According to Study Group*.

Event Vaccine Placebo†
First Dose
(N = 50)
Second Dose
(N = 47)
First Dose
(N = 47)
Second Dose
(N = 43)
no. % (95% CI) no. % (95% CI) no. % (95% CI) no. % (95% CI)
Local symptoms
  Nasal discomfort 7 14 (6–27) 5 11 (4–23) 2 4 (1–15) 2 5 (1–16)
  Nasal discharge 15 30 (18–45) 15 32 (19–47) 16 34 (21–49) 10 23 (12–39)
  Nasal stuffiness 15 30 (18–45) 11 23 (12–38) 12 26 (14–40) 8 19 (8–33)
  Nasal itching 7 14 (6–27) 10 21 (11–36) 10 21 (11–36) 5 12 (4–25)
  Sneezing 11 22 (12–36) 16 34 (21–49) 11 23 (12–38) 9 21 (10–36)
  Blood-tinged mucus 1 2 (0–11) 0 0 (0–8) 1 2 (0–11) 0 0 (0–8)
  Nasal bleeding 0 0 (0–7) 0 0 (0–8) 0 0 (0–8) 0 0 (0–8)
  Any local symptom 22 44 (30–59) 22 47 (32–62) 23 49 (34–64) 13 30 (17–46)
Systemic symptoms
  Fever 0 0 (0–7) 0 0 (0–8) 2 4(1–15) 0 0 (0–8)
  Fatigue or malaise 9 18 (9–31) 1 2 (0–11) 7 15 (6–28) 2 5 (1–16)
  Headache 16 32 (20–47) 8 17 (8–31) 14 30 (17–45) 9 21 (10–36)
  Nausea 7 14 (6–27) 2 4 (1–15) 6 13 (5–26) 3 7 (2–19)
  Loss of appetite 5 10 (3–22) 1 2 (0–11) 5 11 (4–23) 2 5 (1–16)
  Abdominal cramps 6 12 (5–24) 3 6 (1–18) 7 15 (6–28) 4 9 (3–22)
  Vomiting (≥1 episode) 0 0 (0–7) 0 0 (0–8) 2 4(1–15) 0 0 (0–8)
  Diarrhea
   Any 1 2 (0–11) 0 0 (0–8) 1 2 (0–11) 0 0 (0–8)
   ≥2 loose or liquid stools 5 10 (3–22) 6 13 (5–26) 10 21 (11–36) 10 23 (12–39)
  Any systemic symptom 26 52 (37–66) 12 26 (14–40) 24 51 (36–66) 16 37 (23–53)
Any systemic or local symptom 33 66 (51–79) 29 62 (46–76) 33 70 (55–83) 21 49 (33–65)
*

CI denotes confidence interval.

†

Data were not available during the follow-up period for one participant in the placebo group.