Secondhand smoke exposure predicted COPD and other tobacco-related mortality in a 17-year cohort study in China.

BACKGROUND: Prospective evidence on the association between secondhand smoke (SHS) and COPD and ischemic stroke is scarce. METHODS: We prospectively examined the relationship between SHS and major tobacco-related deaths, particularly COPD and stroke, in 910 Chinese (439 men, 471 women) who never smoked from a 17-year follow-up study in Xi'an, China. SHS exposure was defi ned as exposure to another person's tobacco smoke at home or in the workplace. RESULTS: At baseline among the 910 subjects, 44.2% were exposed to SHS at home, 52.9% in the workplace, and 67.1% at home, work, or both. From March 1, 1994, to July 1, 2011, 249 (150 men,99 women) died within 14,016 person-years. Those who were exposed to SHS had increased mortality due to coronary heart disease (adjusted relative risk [RR], 2.15; 95% CI, 1.00-4.61), ischemic stroke (RR, 2.88; 95% CI, 1.10-7.55), lung cancer (RR, 2.00; 95% CI, 0.62-6.40), COPD (RR, 2.30;95% CI, 1.06-5.00), and all causes (RR, 1.72; 95% CI, 1.29-2.20), with significant dose-response relationships between cumulative SHS exposure at home and work and the increased risk of cause-specific and total mortality (P for linear trend ranged from .045 to , .001). CONCLUSIONS: This study shows dose-response relationships between SHS and major tobacco-related mortality and provides new evidence to support causation for COPD and ischemic stroke.

Decolonization and the movement for institutionalization of Chinese medicine in Hong Kong: a political process perspective.

This paper focuses on the question of why the social and political acceptance of Chinese medicine has grown in the former British colony of Hong Kong since the late 1980s. To supplement the conventional explanations for the institutionalization of alternative medicines, we propose a political process perspective that highlights the effects of political changes amidst the decolonization process in Hong Kong. During the late 1980s and early 1990s, the weakening of the political position of the established elite, the opening up of political space for previously excluded groups, and the competition for support among the new political elite, all stimulated the indigenous Chinese medicine organizations to mobilize for the institutionalization of Chinese medicine. By the mid-1990s academics from leading tertiary institutions began to take over the leadership of the movement and in doing so carried it to a higher level. In the conclusion, we briefly consider the implications of this movement for the future development of alternative medicine in Hong Kong and other societies.