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Table 3 Hospitals and population coverage in numbers, GBS patients notified to the neurologist network, estimated sensitivity compared to patients coded as GBS in the National Hospital In-patient Registry and incidence × 100,000

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

Hospital Person-years ≥20 years Number of patients Proportions Incidence × 100,000
Number of hospital-registered patientsa Notified patients Notified and confirmed GBS (a) Confirmed not hospital registered (b) Infection in preceding 30 days Influenza vaccine in preceding 42 days Confirmed not registered over notified and confirmed (b/a) Estimated sensitivity 1-(b/a) in registered patientsa in notified patients
Carlos Haya Hospital (Malaga) 3,676,698 19 13 13 4 8 0 0.31 0.69 0.52 0.35
General Hospital (Segovia) 364,983 6 4 4 0 3 0 0.00 1.00 1.64 1.10
La Paz University Hospital (Madrid) 1,239,486 27 19 18 5 10 2 0.28 0.72 2.18 1.45
Miguel Servet University Hospital (Zaragoza) 1,023,261 13 11 9 1 3 0 0.11 0.89 1.27 0.88
Bellvitge University Hospital (Hospitalet de Llobregat) 3,034,845 31 20 20 7 11 2 0.35 0.65 1.02 0.66
Puerta de Hierro University Hospital (Majadahonda) 967,029 17 15 14 0 8 0 0.00 1.00 1.76 1.45
Severo Ochoa University Hospital (Leganés) 472,563 8 5 5 0 3 0 0.00 1.00 1.69 1.06
Virgen de la Salud Hospital (Toledo) 1,003,170 16 17 16 6 11 0 0.38 0.63 1.59 1.59
Virgen de las Nieves University Hospital (Granada) 1,115,721 18 15 13 4 8 0 0.31 0.69 1.61 1.17
University Hospital Clínico (Santiago de Compostela) 1,154,658 38 29 29 8 20 3 0.28 0.72 3.29 2.51
Total 14,052,414 193 148 141 35 85 7 0.25 0.75 1.37 1.00
  1. GBS Guillain-Barré syndrome
  2. aPatients admitted to the respective hospitals during the period 2009–2011 and discharged with ICD-9-CM code 357.0 as their principal diagnosis