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Table 1 Vaccinated individuals with at least one event within 7 days of vaccination by geographical area, type of vaccine and characteristics

From: Active surveillance for safety monitoring of seasonal influenza vaccines in Italy, 2015/2016 season

 

Number of subjects vaccinateda

 

Total

With any event (%)

OR (95% CI)

Geographical area

 Nord-west (Piedmont, Liguria)

1376

352 (25.6)

1

 Nord-east (Friuli Venezia Giulia, Emilia Romagna)

651

203 (31.2)

1.32 (1.07–1.62)

 Centre-South (Lazio, Apulia)

1186

290 (24.5)

0.94 (0.79–1.13)

Type of vaccinesb

 Subunit (2)

1636

444 (27.1)

1

 Adjuvanted (1)

526

114 (21.7)

0.74 (0.59–0.94)

 Split (3)

660

138 (20.9)

0.71 (0.57–0.88)

 Intradermal (1)

394

149 (38.1)

1.65 (1.31–2.08)

Agec

  ≤ 14

651

208 (32.0)

1.98 (1.46–2.68)

 15–25

142

70 (49.3)

4.10 (2.71–6.22)

 26–65

1174

310 (26.4)

1.51 (1.14–2.02)

 66–79

854

183 (21.4)

1.15 (0.85–1.56)

  ≥ 80

381

73 (19.2)

1

Sex

 Males

1614

373 (23.1)

1

 Females

1599

472 (29.5)

1.39 (1.19–1.63)

Seasonal vaccination, 2014–2015d

 Yes

1958

490 (25.0)

1

 No

805

241 (29.9)

1.28 (1.07–1.54)

High risk condition e

 No

454

134 (29.5)

1

 Yes

2253

581 (25.8)

0.83 (0.66–1.04)

Total

3213

845 (26.3)

 
  1. a vaccinated with one dose of flu vaccine
  2. b number of different products in brackets
  3. c Age not available for 11 subjects
  4. d Seasonal vaccination for 2014–2015 not available for 542 subjects
  5. eInformation on high risk condition not available for 506 subjects. High risk conditions include older people, pregnant women and people with chronic health conditions; these are the target for the influenza vaccination programme in Italy. [8]
  6. OR odds ratio, CI confidence interval