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Table 3 The seasonality and correlations with climatic conditions of M. pneumoniae and C. pneumoniae infection in hospitalized children

From: Epidemiology and associations with climatic conditions of Mycoplasma pneumoniae and Chlamydophila pneumoniae infections among Chinese children hospitalized with acute respiratory infections

      M. pneumoniae     C. pneumoniae
Seasons n (%) n (%)
  Spring (Mar-May) 43 (11.0) 26 (6.6)
  Summer (Jun-Aug) 86 (20.4) a 32 (7.6)
  Autumn (Sep-Nov) 57 (13.9) 15 (3.6) c
  Winter (Dec-Feb) 28 (7.5) b 23 (6.1)
Meteorological conditions   r  P   r  P
  Temperature (°C)  0.825 0.001  −0.021 0.948
  Relative humidity (%)  0.527 0.782    0  1.0
  Rainfall (mm)  0.189 0.557   0.294 0.354
  Sum of sunshine (h)  0.392 0.208   0.070 0.829
  Wind velocity (m/s)  0.629 0.028   0.443 0.149
  1. aP < 0.0001; bP = 0.0001; cP = 0.02 (prevalence of infections in a particular season compared to the mean prevalence in all other seasons). r Spearman coefficient.