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Table 3 Relative changes in age-standardised incidence for prostate cancer, by level of population exposure to chlordecone, from 1981 to 2005 (reference period: 1981–1985)

From: Geographic variations and temporal trends in prostate cancer in Martinique over a 25-year period

Zones* Period RR 95% CI[ p-value§
1 1981-1985 1.00 - - -.
1986-1990 1.32 1.05 1.67 0.0189
1991-1995 1.72 1.38 2.14 <.0001
1996-2000 2.10 1.69 2.60 <.0001
2001-2005 2.35 1.90 2.91 <.0001
2 1981-1985 1.00 - - -.
1986-1990 0.86 0.63 1.16 0.3174
1991-1995 0.94 0.70 1.24 0.6512
1996-2000 1.01 0.77 1.32 0.9528
2001-2005 1.19 0.91 1.55 0.1960
3 1981-1985 1.00 - - -.
1986-1990 0.89 0.65 1.24 0.5115
1991-1995 1.04 0.77 1.42 0.7801
1996-2000 1.38 1.04 1.84 0.0272
2001-2005 1.59 1.17 2.04 0.0024
4 1981-1985 1.00 - - -.
1986-1990 0.84 0.58 1.22 0.3551
1991-1995 1.16 0.82 1.64 0.3891
1996-2000 1.36 0.97 1.89 0.0696
  2001-2005 1.37 0.99 1.89 0.0563
  1. *Zone 1: <10% chlordecone contaminated ground: no population exposure to chlordecone; Zone 2: 10-20% chlordecone contaminated ground: low population exposure to chlordecone; Zone 3: 20-30% chlordecone contaminated ground: medium population exposure to chlordecone; Zone 4: >30% chlordecone contaminated ground: high population exposure to chlordecone;RR: Relative risk;[95% CI: 95% Confidence Interval;§level of significance: p-value < 5%.
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