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Table 1 Demographics, vaccination history, and personal protection adherence of 150 health care workers at a children's hospital during the 2009 H1N1 influenza pandemic in Taiwan

From: Longitudinal seroepidemiologic study of the 2009 pandemic influenza A (H1N1) infection among health care workers in a children's hospital

Characteristics All (N = 150)
No. (%)
High risk (N = 93)
No. (%)
Low risk (N = 57)
No. (%)
P value2
Age, mean ± SD [range], year 31.8 ± 6.3[22-59] 30.8 ± 5.8 [23-59] 33.5 ± 6.8 [23-51] 0.008
Male: Female 34:116 28:65 6:51 0.005
Vaccinated with     
2009 seasonal influenza vaccine 77 (51.3%) 60 (64.5%) 17 (29.8%) < 0.001
2009 H1N1 influenza vaccine 60 (40.0%) 53 (57.0%) 7 (12.3%) < 0.001
Optimal PPE     
N95 mask 5 (3.3%) 5 (5.4%) 0 (0%) 0.157
Surgical mask 133 (88.7%) 93 (100%) 40 (70.2%) < 0.001
Hand hygiene 143 (95.3%) 93 (100%) 50 (87.7%) < 0.001
  1. Comparisons were made between high- and low-risk groups1
  2. Abbreviations: SD, standard deviation; PPE, personal protective equipment.
  3. 1 See text for definition of high- and low-risk groups.
  4. 2 P values were calculated by Chi-square test or Fisher exact test to compare the difference between high-risk and low-risk groups.