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Table 1 Characteristics of confirmed GBS cases notified in 2009–2011 and identified by the neurologist network

From: Guillain-Barré syndrome following the 2009 pandemic monovalent and seasonal trivalent influenza vaccination campaigns in Spain from 2009 to 2011: outcomes from active surveillance by a neurologist network, and records from a country-wide hospital discharge database

   Motor status at one week after clinical onset or hospital admission
Variables No. of patients (%) Independent gait Gait: able with support Able to stand up Bed-bound Unknown
Sex       
 Male 82 (58.2) 21 21 3 31 6
 Female 59 (41.8) 18 22 0 17 2
Age group (years)       
 20–29 11 (7.8) 5 4 0 1 1
 30–39 23 (16.3) 14 6 0 2 1
 40–49 21 (14.9) 5 9 1 5 1
 50–59 25 (17.7) 4 13 1 6 1
 60–69 24 (17.0) 6 5 0 12 1
 70–79 26 (18.4) 2 4 0 17 3
 80+ 11 (7.8) 3 2 1 5 0
Clinical antecedent       
 Not identified 41 (29.1) 14 13 1 9 4
 Recorded 100 (70.9) 25 30 2 39 4
  Infection 85 (60.3) 21 27 2 32 3
   —GTI 40 (28.4) 9 13 1 15 2
   —ILI-RTI 34 (24.1) 11 9 1 12 1
   —GI and ILI-RTI 3 (2.1) 0 1 0 2 0
   —Urinary tract 3 (2.1) 0 2 0 1 0
   —Other 4 (2.8) 1 2 0 1 0
   —Unknown 1 (0.7) 0 0 0 1 0
  Influenza vaccination 7 (5.0) 2 1 0 4 0
  Othera 13 (9.2) 2 4 0 6 1
All patients 141a,b 39 (27.7) 43b (30.5) 3 (2.1) 48b (34.0) 8 (5.7)
  1. GBS Guillain-Barré syndrome, GTI gastrointestinal tract infection, ILI-RTI influenza-like infection or respiratory tract infection
  2. a“Other” encompasses surgery, medication, trauma, gastric carcinoma, delivery and pregnancy
  3. bThe sum does not add up the total amount of patients because some patients had more than one antecedent