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Biomedical subjects

C D Holman

Publications and source records attributed to C D Holman.

118 records · Page 7Linked to original sources
PubMed1981

Recent trends in mortality from prostate cancer in male populations of Australia and England and Wales.

Mortality rates from cancer of the prostate in successive periods from 1908 to 1978 in Australia, and 1911 to 1977 in England and Wales, have been examined for trends with time and birth cohort. Age-specific rates and a proportional hazards model, designed to isolate the effect of birth cohort from those of calendar year and age, were used in the analysis. During the period of study, age-standardized mortality rose more than 5-fold in Australian men compared to just over 3-fold in men in England and Wales. In both countries the increases occurred almost entirely before 1960, with relative stability in age-standardized rates since then. The trends in mortality with year of birth were similar in the two sets of data. The risk of death from prostate cancer increased with successive birth cohorts to reach a peak in men born around 1865-1880 in Australia and men born around 1876-1896 in England and Wales. Males born later experienced a continuing reduction in rates, with the exception of age groups between 50 and 69 in which a further increase has appeared, starting with cohorts born after 1910. On the basis of current knowledge of the aetiology of prostate cancer, possible relationships between changes in sexual practices and prostate-cancer risk in successive generations have been explored. It is suggested that lowered sexual activity during the Great Depression may account for the recent cohort-based increases in mortality in middle-aged men.

Adult↗
PubMed1980

An analysis of trends in mortality from malignant melanoma of the skin in Australia.

Australian mortality rates from cutaneous malignant melanoma in successive periods from 1931 to 1977 have been examined with respect to geographic variation and trend with time and birth cohort. The age-standardized rates rose from 0.8/100,000 in males and 0.6/100,000 in females in 1931-34 to 4.2/100,000 and 2.5/100,000 in 1975-77. Mortality rates were highest in Queensland in the north of Australia and diminished on a gradient from the north to south of the country. An analysis designed to separate effects due to calendar year, birth cohort and age showed that virtually all the secular trend in rates could be explained by increases in successive birth cohorts, beginning as early as 1865 and stabilizing with the cohorts born around 1925 in women and 1935 in men. It is suggested that the cohort-based increase in mortality resulted from life-style changes occurring with successive generations. Its stabilization in recent birth cohorts, if persistent, suggests that the secular trend towards increasing total mortality from melanoma will also stabilize over the next 40 years.

Adult↗
PubMedDate not supplied

The myth of "healthism" in organized sports: implications for health promotion sponsorship of sports and the arts.

PURPOSE: The study examines the association of involvement in sports and arts with five health risk factors. The aims were to evaluate the argument that promotion of sports alone will achieve health objectives and to assess the suitability of sports and arts populations as targets for health promotion sponsorship. DESIGN: Personal and telephone cross-sectional surveys were performed in Western Australia in 1992 (N = 2629) and 1994 (N = 2031). SETTING: Sports and arts venues in Western Australia. SUBJECTS: Random samples of household respondents aged 16 to 69 years. MEASURES: Measures of association between risk factors and involvement in sports and the arts were adjusted for sex, age, residence, income, and other types of sports/arts involvement. RESULTS: Spectators attending sports events, who were not members of organized sports clubs, were more likely to possess three or more risk factors than nonparticipants (OR = 1.43; 95% CI 1.20-1.70). They were more likely to report cigarette smoking, unsafe alcohol drinking, and poor sun protection practices. Sports club members had a similar profile of risk factors, except that their prevalence of smoking was reduced and they were much less likely to report inadequate physical exercise. The most elevated risk factor in sports populations was unsafe alcohol drinking (OR = 1.81 in club members, 1.88 in spectators, and 2.25 in spectators who were also members). Arts populations were less likely than average to report elevated risk factors, especially in the case of members of arts organizations who also attended arts events (for three or more risk factors, OR = 0.59; 95% CI .45-.75). However, the majority of arts respondents had at least two risk factors. Levels of inadequate exercise in arts populations were the same as those in sports populations. CONCLUSIONS: The promotion of sports alone is unlikely to achieve health objectives. Highest priority in the use of health promotion sponsorship funds should be given to the populations attending sports events and involved as members of sports clubs. Investment in arts sponsorship is warranted, but at a lower level than health sponsorship of sports.

Adolescent↗
PubMedDate not supplied

Association of the health-promoting workplace with trade unionism and other industrial factors.

PURPOSE: The study examines associations of five healthy workplace attributes with trade unionism and nine other industrial and sociodemographic factors. The aims were to illustrate the measurement of workplace health promotion indicators in Western Australia and to identify associations leading to a better understanding of determinants of the healthy workplace. DESIGN: Personal and telephone cross-sectional surveys were performed using population-based sampling frames. The overall response rate was 72%. SETTING: Workplaces in Western Australia. SUBJECTS: Random samples of household respondents aged 16 to 69 years in 1992 (n = 1310) and 1994 (n = 1113). MEASURES: Measures of association between healthy workplace attributes and trade unionism were adjusted for workplace location, size, sector, and industrial classification. RESULTS: Trade unionism was strongly associated with healthy catering practices (adjusted OR 2.05; 95% CI 1.30 to 3.23), sun protection practices (2.66; 1.69 to 4.17), disability access (1.47; 1.10 to 1.95), and worksite health promotion programs (2.56; 2.07 to 3.17). A weak and nonsignificant association was observed with restrictive smoking policies (1.21; .95 to 1.55). Generally, healthy workplace attributes were reported less often by respondents working in rural locations, in the private sector, and at small worksites. There was no consistent relationship with sociodemographic factors, including an index of social disadvantage, but members of blue-collar occupations experienced a low prevalence of restrictive smoking policies. CONCLUSIONS: The study raises the hypothesis, but cannot confirm, that trade unions could provide a means for employees to pursue the creation of a health-promoting workplace. Small business represents an excellent target for health promotion activities.

Adolescent↗
PubMedDate not supplied

Prenatal screening for markers of hepatitis B in aboriginal mothers resident in non-metropolitan Western Australia.

Of 1947 Aboriginal women who resided in non-metropolitan regions of Western Australia and gave birth during January 1983 to February 1985, 42% of women were screened prenatally for the presence of hepatitis B surface antigen (HBsAg). The proportions of Aboriginal women who were screened varied from 17% in the southern divisions to 72% in the Kimberley region. The screening programme identified 29 Aboriginal women with a positive result of the test. On this basis, the estimated prevalence of HBsAg among non-metropolitan Aboriginal women was 3.6% (95% confidence interval, 2.5%-5.1%). According to the geographical location of the mother's residence, the observed prevalence of HBsAg varied from 0 in the southern divisions to around 4%-5% in the central and eastern divisions.

Carrier State↗