Skip to main content

Advertisement

Table 3 Age- and sex-adjusted Mantel-Haenszel relative risk (RR-MH) with 95% confidence interval (CI) of amyotrophic lateral sclerosis according to long-term consumption of drinking water with Se content ≥1 μg/l vs. <1 μg/l, Reggio Emilia municipality, northern Italy, 1995-2006

From: The relation between amyotrophic lateral sclerosis and inorganic selenium in drinking water: a population-based case-control study

   Males Females Total
Age   High Se Low Se High Se Low Se High Se Low Se
40-54 cases 1 6 1 1 2 7
  controls 1 13 0 4 1 17
55-69 cases 3 6 0 4 3 10
  controls 4 14 0 8 4 22
≥70 cases 2 12 1 4 3 16
  controls 0 28 1 9 1 37
Total cases 6 24 2 9 8 33
  controls 5 55 1 21 6 76
RR-MH 3.3 (95% CI 1.0 - 11)