Brief Reports
Copyright ©The Author(s) 2004.
World J Gastroenterol. Sep 1, 2004; 10(17): 2544-2546
Published online Sep 1, 2004. doi: 10.3748/wjg.v10.i17.2544
Table 1 Distribution of age, sex, location, and serum selenium in study sample
ProvinceNumber of samplesMedian age (yr)Male (%)Urban (%)Annual incidence of EC/105Annual incidence of GC/105Median serum selenium (IQR) in mg/L
Ardabil1004949 (49)49 (49)153882 (75-94)
Mazandaran503524 (48)50 (100)1922123 (111-132)
Golestan1005051 (51)51 (51)4018155 (141-173)
Kerman503326 (52)50 (100)38119 (110-128)
Total30045150 (50)200 (67)--1231