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Table 1 Season averages of weekly meteorological data, proportions of positive specimens and numbers of death

From: Seasonal effects of influenza on mortality in a subtropical city

  Whole year Autumn Winter Spring Summer
Variables Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD)
Temperature 23.7 (4.7) 25.6 (2.7) 17.6 (2.4) 22.9 (3.0) 28.6 (1.1)
Humidity 78.0 (7.8) 74.5 (8.3) 74.1 (8.9) 82.0 (5.2) 81.3 (3.9)
Virus isolation (%)           
   Influenza 10.1 (10.1) 2.0 (2.7) 13.2 (14.0) 13.0 (9.0) 12.0 (6.2)
   RSV 8.8 (6.8) 8.7 (7.1) 3.0 (3.3) 10.6 (5.7) 12.8 (6.4)
   Adenovirus 4.2 (3.4) 3.7 (2.9) 4.1 (2.7) 4.2 (3.9) 4.9 (3.8)
   PIV-1 1.5 (2.6) 2.4 (3.4) 2.3 (3.2) 0.5 (0.8) 0.6 (1.2)
   PIV-2 0.3 (0.6) 0.5 (0.7) 0.3 (0.5) 0.1 (0.4) 0.3 (0.5)
   PIV-3 2.8 (2.1) 2.9 (2.5) 2.4 (1.9) 3.2 (2.0) 2.6 (2.0)
Mortality           
   All-cause           
All ages 623.3 (65.1) 572.7 (38.6) 682.6 (59.4) 644.7 (58.2) 593.4 (34.2)
65+ 468.5 (61.3) 420.0 (38.3) 524.6 (56.7) 488.0 (53.2) 441.3 (31.0)
   CRD           
All ages 278.4 (48.8) 238.8 (21.9) 321.5 (46.3) 296.5 (46.7) 256.8 (23.5)
65+ 242.7 (45.0) 205.8 (20.9) 284.9 (41.4) 258.4 (41.9) 221.7 (19.9)
   P&I           
All ages 65.0 (15.8) 56.8 (13.4) 70.4 (15.4) 67.0 (15.6) 65.9 (15.4)
65+ 59.5 (14.3) 52.2 (12.4) 64.8 (13.5) 61.1 (14.3) 59.9 (14.1)
   COPD           
All ages 40.7 (12.2) 30.4 (5.9) 47.2 (13.1) 47.3 (11.3) 38.1 (7.8)
65+ 37.1 (11.3) 27.4 (5.6) 43.8 (11.9) 43.0 (10.6) 34.3 (6.9)
   Cerebrovascular           
All ages 61.9 (13.5) 55.0 (9.2) 72.2 (12.6) 66.0 (13.5) 54.5 (8.9)
65+ 52.8 (12.6) 46.0 (8.6) 61.7 (11.7) 57.2 (12.6) 46.0 (8.6)
   IHD           
All ages 62.4 (13.9) 54.2 (8.5) 74.5 (14.3) 65.5 (13.0) 55.6 (7.6)
65+ 53.6 (12.8) 46.0 (7.6) 65.7 (12.7) 55.8 (12.0) 47.0 (6.9)