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Table 2 Percentage (with 95% confidence intervals) of subjects reporting solicited local (injection site) symptoms within 7 days after the first and after the second dose of H1N1 vaccine in adults aged 18 to 60 years and in adults >60 years

From: Flexibility of interval between vaccinations with AS03A-adjuvanted influenza A (H1N1) 2009 vaccine in adults aged 18–60 and >60 years: a randomized trial

Symptom

Intensity

Group A Vaccinated on Day 0 and Day 21

Group B Vaccinated on Day 0 and Day 182

Dose 1% (95% CI)

18-60 years N = 92

>60 years N = 90

18-60 years N = 70

>60 years N = 52

Pain

Any

94.6

78.9

95.7

67.3

(87.8-98.2)

(69.0-86.8)

(88.0-99.1)

(52.9-79.7)

Grade 3*

0.0

2.2

0.0

0.0

(0.0-3.9)

(0.3-7.8)

(0.0-5.1)

(0.0-6.8)

Redness

Any

10.9

8.9

11.4

1.9

(5.3-19.1)

(3.9-16.8)

(5.1-21.3)

(0.0-10.3)

>100 mm

0.0

0.0

0.0

0.0

(0.0-3.9)

(0.0-4.0)

(0.0-5.1)

(0.0-6.8)

Swelling

Any

12.0

6.7

8.6

1.9

(6.1-20.4)

(2.5-13.9)

(3.2-17.7)

(0.0-10.3)

>100 mm

0.0

0.0

0.0

0.0

(0.0-3.9)

(0.0-4.0)

(0.0-5.1)

(0.0-6.8)

  

Dose 2% (95% CI)

18-60 years N = 91

>60 years N = 85

18-60 years N = 60

>60 years N = 45

Pain

Any

87.9

72.9

90.0

57.8

(79.4-93.8)

(62.2-82.0)

(79.5-96.2)

(42.2-72.3)

Grade 3*

2.2

0.0

5.0

0.0

(0.3-7.7)

(0.0-4.2)

(1.0-13.9)

(0.0-7.9)

Redness

Any

6.6

12.9

10.0

6.7

(2.5-13.8)

(6.6-22.0)

(3.8-20.5)

(1.4-18.3)

>100 mm

0.0

0.0

3.3

2.2

(0.0-4.0)

(0.0-4.2)

(0.4-11.5)

(0.1-11.8)

Swelling

Any

8.8

11.8

16.7

8.9

(3.9-16.6)

(5.8-20.6)

(8.3-28.5)

(2.5-21.2)

>100 mm

0.0

0.0

0.0

0.0

(0.0-4.0)

(0.0-4.2)

(0.0-6.0)

(0.0-7.9)

  1. *Grade 3 was defined as significant injection site pain at rest which prevents normal activities (inability to attend/do work).