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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%.