Skip to main content

Advertisement

Table 3 Seasonal distribution of PUD hospital admission: results of chronobiological time series analysis.

From: Seasonal pattern of peptic ulcer hospitalizations: analysis of the hospital discharge data of the Emilia-Romagna region of Italy

   n PR MESOR (± SE) Peak (1°, 2°, 3°) Nadir P*
Total cases   26,848 83.3 2,236 (26.38) Sept/oct, Jan/Feb, Apr/May July 0.035
Males   16,795 78.0 1,398.69 (20.43) Sept/Oct, Jan/Feb, Apr/May July 0.064
Females   10,053 87.1 837.43 (9.24) Sept/Oct, Apr/May, Jan/Feb July 0.032
Age < 65 yrs   7,151 73.8 595.77 (8.89) Sept/Oct, Jan/Feb, Apr/May July 0.144
Age 65-74 yrs   8,849 86.8 736.75 (9.60) Jan/Feb, Sept/Oct, Apr/May July 0.022
Age > 75 yrs   10,848 71.8 903.60 (14.80) Sept/Oct, Apr/May, Jan/Feb July 0.123
Final outcome: fatal   1,290 58.7 107.48 (3.03) Dec/Jan, Apr/May, Aug/Sept October 0.407
Final outcome: non-fatal   25,558 83.6 2,128.64 (25.71) Sept/Oct, Jan/Feb, Apr/May July 0.067
With hemorrhage   12,682 63.3 1,056.51 (18.37) Sept/Oct, Jan/Feb, Apr/May July 0.153
With perforation   2,541 29.0 211.73 (7.62) Mar/May, Sept/Nov, - July 0.949
Gastric ulcer Total 976 96.3 81.25 (0.83) Sept/Oct, Jan/Feb, Apr/May July 0.002
  Acute 734 88.7 61.11 (1.04) Sept/Oct, Jan/Feb, Apr/May July 0.021
  Chronic 242 75.6 20.13 (0.80) Sept/Oct, Jan/Feb, Apr/May July 0.161
Duodenal ulcer Total 24,105 82.7 2,007.72 (24.40) Sept/Oct, Jan/Feb, Apr/May July 0.036
  Acute 12,180 95.1 1,014.62 (6.21) Sept/Oct, Apr/May, Jan/Feb July 0.002
  Chronic 7,415 73.5 617.98 (17.35) Sept/Nov, Apr/Jun, - July 0.083
  1. *P value for the test of null-amplitude hypothesis; rejection of the hypothesis at p < .05 the amplitude of the annual pattern = 0 constitutes evidence for annual variation.