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Table 2 Mycoplasma-, chlamydia- and virus-positive rates in different age groups

From: Etiological analysis of virus, mycoplasma pneumoniae and chlamydia pneumoniae in hospitalized children with acute respiratory infections in Huzhou

Pathogen Infants (414) Toddlers (969) Preschoolers (987) Schoolchildren (751) χ2 P
MP 4 (0.97%) 10 (1.03%) 22 (2.03%) 15 (2.00%) 6.124 0.106
CP 2 (0.48%) 2 (0.21%) 0 (0.00%) 1 (0.13%) 4.234 0.132
virus 92 (22.22%) 140 (14.45%) 133 (13.48%) 82 (10.92%) 28.735 0.000
  1. With increasing age, the overall MP positive rate showed an upward trend, while CP had the opposite trend, but there was no significant difference among the four groups. As age increased, the detection rate of viruses decreased, and there was a statistically significant difference among different age groups