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Table 1 Demographic characteristics and anti-S IgG detection of the study subjects

From: First infection by all four non-severe acute respiratory syndrome human coronaviruses takes place during childhood

Characteristic   Value (male/female) %
No. of subjects   794 (457/337)  
Mean age (y)   28.75 ± 17.79  
Age range (y)   0.5–75  
Group    
Child (<14 y)   215 (113/102)  
  <1 y 8 (5/3)  
  1–3 y 134 (68/66)  
  3–6 y 46 (28/18)  
  7–14 y 27 (12/15)  
Adult (≥14 y)   579 (344/235)  
  15–30 y 150 (76/74)  
  31–40 y 211 (132/79)  
  41–50 y 152 (91/61)  
  ≥51 y 66 (45/21)  
Any IgG (+) 229E 665 83.75
  OC43 590 74.31
  HKU1 549 69.14
  NL63 580 73.05
All (−)   29 3.65