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Table 3 Association of baseline exposure with mortality due to cerebrovascular disease for the total sample and by gender

From: A prospective cohort study of stroke mortality and arsenic in drinking water in Bangladeshi adults

Baseline exposure (μg/L) Deaths, No Person-Years, No Rate* HR (95% CI) Ptrend
      Unadjusted  Adjusted**  
Male       
<10 36 15986 2.3 1.0 1.0 0.45
10-49 196 63824 3.1 1.37 (0.96- 1.95) 1.12 (0.78- 1.60)
+50 271 17601 3.6 1.30 (0.92- 1.84) 1.07 (0.75- 1.51)
Female       
<10 26 22212 1.2 1.0 1.0 0.00004
10-49 179 92538 1.9 1.65 (1.09- 2.49) 1.31 (0.87- 1.98)
+50 325 24978 2.6 2.06 (1.38- 3.07) 1.72 (1.15- 2.57)
Total       
<10 62 38198 1.6 1.0 1.0 0.00058
10-49 375 156362 2.4 1.48 (1.13- 1.93) 1.20 (0.92- 1.57)
+50 596 42579 3.0 1.62 (1.24- 2.10) 1.35 (1.04- 1.75)  
  1. *Crude death rate per 1000 person-years, **HR was adjusted with age, sex, education attainment and SES.