Seasonal variations of acute appendicitis and nonspecific abdominal pain in Finland

Figure 1 Temperature, humidity and incidences of acute appendicitis, and non-specific abdominal pain in 1987-2007 in Finland. AA: Acute appendicitis; NSAP: Non-specific abdominal pain.

Figure 2 Acute appendicitis, non-specific abdominal pain, temperature and humidity in Finland (as mean value over the 21 years). AA: Acute appendicitis; NSAP: Non-specific abdominal pain.

Figure 3 University hospital districts of Finland. Areas: I: UHD of Helsinki; II: UHD of Turku; III: UHD of Tampere; IV: UHD of Oulu; V: UHD of Kuopio. UHD: University hospital districts of Finland.

Figure 4 Incidences of acute appendicitis and non-specific abdominal pain during the warm compared to the cold periods of the year in Finland. AA: Acute appendicitis; NSAP: Non-specific abdominal pain.