Worker Health Chartbook 2004

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1		Figure 2-181 Prevalence of CWXSP-examined miners with CWP category 1/0 or greater by tenure in underground coal mining, 1970-1999. During 1970-1999, the prevalence of CWP category 1/0 or greater decreased among all tenure groups toward the prevalence of the baseline tenure group (0-9 years in underground coal mining). (Source: NIOSH [2002g].)
2		Figure 2-182 Prevalence of CWXSP-examined miners with CWP category 2/1 or greater by tenure in underground coal mining, 1970-1999. During 1970-1999, the prevalence of CWP category 2/1 or greater decreased among all tenure groups toward the prevalence of the baseline tenure group (0-9 years in underground coal mining). (Source: NIOSH [2002g].)

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