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Table 1 Demographic and serological characteristics of the participants

From: Effects of age on H1N1-specific serum IgG1 and IgG3 levels evaluated during the 2011–2012 influenza vaccine season

  Young Elderly
Participants (n) 35 25
Age (mean years ± SE) 40 ± 3 69 ± 5b
Gender (M/F) 12/23 11/14
Race (W/B) 20/15 15/10
Ethnic Categories (Hispanic/Non Hispanic) 14/21 8/17
CMV (% positive individuals) 22 78b
TNF-α (pg/ml) 6 ± 1 13 ± 4a
IL-6 (pg/ml) 44 ± 18 101 ± 33b
CRP (pg/ml) 640 ± 95 895 ± 57b
  1. Young: 20-59 years, Elderly: ≥60 years.
  2. ap < 0.01, bp < 0.05.