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| 1 |  | Figure 2-172 Number of deaths of U.S. residents aged 15 or older with pneumoconiosis recorded as an underlying or contributing cause on the death certificate, 1968-1999. During 1968-1999, deaths from asbestosis increased over time, whereas deaths from CWP decreased. Deaths from all pneumoconioses are shown at the top of each stacked bar. The bars slightly overstate the numbers because a small fraction of deaths was associated with more than one type of pneumoconiosis. (Note: Byssinosis data were not available before 1979. Also note that the sum of deaths for various types of pneumoconiosis (N=123,091) exceeds the total number of pneumoconiosis deaths (N=121,982) because some decedents had more than one type of pneumoconiosis recorded on their death certificates.) (Source: NIOSH [2002f].)
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| 2 |  | Figure 2-173 Distribution of pneumoconiosis deaths in U.S. residents aged 15 or older by sex, 1990-1999. Men accounted for more than 98% of the 31,452 decedents with any type of pneumoconiosis during 1990-1999. However, an unusually large proportion of byssinosis decedents (33%) were female. (Note: The sum of deaths for various types of pneumoconiosis exceeds the total number of pneumoconiosis deaths because some decedents had more than one type of pneumoconiosis.) (Source: NIOSH [2002f].)
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| 3 |  | Figure 2-174 Distribution of pneumoconiosis deaths in U.S. residents aged 15 or older by race, 1990-1999. During 1990-1999, decedents with pneumoconiosis were predominantly white. Less than 4% of CWP deaths occurred among nonwhite residents. By contrast, 15% of silicosis decedents were nonwhite. (Note: The sum of deaths for various types of pneumoconiosis exceeds the total number of pneumoconiosis deaths because some decedents had more than one type of pneumoconiosis.) (Source: NIOSH [2002f].)
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| 4 |  | 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].)
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| 5 |  | 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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| 6 |  | Figure 2-183 Number of deaths of U.S. residents aged 15 or older with CWP recorded as an underlying or contributing cause on the death certificate, 1968-1999. The number of CWP deaths experienced a long-term decline during 1968-1999, from more than 2,500 deaths per year in the early 1970s and 1980s to fewer than 1,500 in the late 1990s. Although the annual number of deaths declined steadily after 1982, the proportion of deaths with CWP listed as the underlying cause on the death certificate remained fairly constant, hovering around 37% from 1980 to 1999. (Source: NIOSH [2002f].)
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| 7 |  | Figure 2-184 Age-adjusted mortality rates for CWP in U.S. residents aged 15 or older by State, 1990-1999. West Virginia had the highest CWP mortality rate-nearly 20 times the rate of 7.56 per million for the entire United States. The second highest rate category included the Appalachian and western coal mining regions. (Source: NIOSH [2002f].)
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| 8 |  | Figure 2-185 PMRs and 95% confidence intervals for CWP in U.S. residents aged 15 or older by industry and occupation, adjusted for age, race, and sex, 1990-1999. Among industries, coal mining and metal mining were associated with elevated CWP mortality during 1990-1999. Among occupations, the three highest significant PMRs were associated with mining. (Note: This figure presents the highest significant PMRs based on 10 or more deaths.) (Source: NIOSH [2002f].)
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| 9 |  | Figure 2-186 Number of deaths of U.S. residents aged 15 or older with unspecified/other pneumoconiosis recorded as an underlying or contributing cause on the death certificate, 1968-1999. The number of unspecified/other pneumoconiosis deaths declined sharply from a high of 1,524 in 1972 to fewer than 400 per year in 1983 and thereafter. The proportion of these deaths in which unspecified/other pneumoconiosis was listed as the underlying cause hovered around 34%. (Source: NIOSH [2002f].)
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| 10 |  | Figure 2-187 Age-adjusted mortality rates for unspecified/other pneumoconiosis in U.S. residents aged 15 or older by State, 1990-1999. During 1990-1999, West Virginia had the highest mortality rates for unspecified/other pneumoconiosis-more than 20 times the U.S. rate of 1.59 per million. High rates were observed among other Appalachian and Western mining States, ranging from two to nine times the U.S. rate. (Source: NIOSH [2002f].)
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| 11 |  | Figure 2-188 PMRs and 95% confidence intervals for unspecified/other pneumoconiosis in U.S. residents aged 15 or older by industry and occupation, adjusted for age, race, and sex, 1990-1999. Coal and metal mining industries were associated with elevated mortality from unspecified/other pneumoconiosis (as these industries were also associated with high CWP mortality). In addition, the glass and glass products industry had a significantly high PMR. Among occupations, mining machine operators and supervisors, extractive occupations were associated with the highest PMRs, followed by welders and cutters and electricians. (Note: This figure presents the highest significant PMRs based on 10 or more deaths.) (Source: NIOSH [2002f].)
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| 12 |  | Figure 4-19 Numbers of deaths, crude mortality rates, and age-adjusted mortality rates for U.S. residents aged 15 or older with coal workers' pneumoconiosis recorded as an underlying or contributing cause on the death certificate, 1968-1999. After passage of the Federal Coal Mine Health and Safety Act of 1969, an increase occurred in the number and rate of deaths reported with coal workers' pneumoconiosis (black lung) recorded on the death certificate. The number and rate of these deaths were at their lowest in 1999, the last year for which data are currently available. The number decreased from 2,870 in 1972 to 1,003 in 1999. In 1972, the crude and age-adjusted mortality rates were 18.9 and 21.2 per million population, respectively. Both rates declined to 4.7 per million in 1999. (Note: Age-adjusted mortality rates are standardized to the year 2000 standard population.) (Sources: NCHS [2002]; NIOSH [2002].)
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