Table 4

Cases of amyotrophic lateral sclerosis (ALS) and parkinsonism in the field sites

ALS criteriaCase no.Crude point prevalence rate (95% CI) among ALS/ ALS- parkinsonism/parkinsonism (2007* or 2010†)
Bade 2007–2012 (population 3800)
 ALSDefiniteALS 5*105 (2 to 208)/100 000 in 2007*
 (n=4)DefiniteALS 6*
DefiniteALS 7*
DefiniteALS 15*
 ALS-parkinsonismDefiniteALS-P 4*53 (0 to 126)/100 000 in 2007*
 (n=2)PossibleALS-P 8*
 Parkinsonism (n=1)P 9*26 (0 to 78)/100 000 in 2007*
Ia River 2007–2012 (population 4500)
 ALSDefiniteALS 4133(27 to 240)/100 000 in 2010†
 (n=7)ProbableALS 8†
ProbableALS 10†
ProbableALS 11†
DefiniteALS 12†
DefiniteALS 13†
DefiniteALS 17†
 ALS-parkinsonismPossibleALS-P 2†89 (2 to 176)/100 000 in 2010†
 (n=4)PossibleALS-P 3†
PossibleALS-P 9†
PossibleALS-P 13†
 ParkinsonismP 10†67 (0 to 142)/100 000 in 2010†
 (n=3)P 15†
P 16†
Edera and Dumut rivers 2008–2012 (population 4100)
 ALSDefiniteALS 9†73 (0–156)/100 000 in 2010†
 (n=3)ProbableALS 14†
DefiniteALS 16†
 ALS-parkinsonismPossibleALS-P 198 (2 to 193)/100 000 in 2010†
 (n=5)DefiniteALS-P 5†
DefiniteALS-P 6†
PossibleALS-P 10†
PossibleALS-P 11†
 ParkinsonismP 6122 (15 to 229)/100 000 in 2010†
 (n=6)P 7†
P 8†
P 11†
P 12†
P 13†
  • *Active cases in 2007 in Bade.

  • †Active cases in 2010 in the villages along the Ia, Edera and Dumut rivers.