Improving integration in care requires many components. However, local barriers and facilitators need to be considered. Changes are expected to occur slowly and are more likely to be successful where elements of integrated care are well incorporated into local settings.

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The causal interpretation of reported associations between daily air pollution and daily admissions requires consideration of residual confounding, correlation between pollutants, and effect modification. If results obtained in Hong Kong and London--which differ in climate, lifestyle, and many other respects--were similar, a causal association would be supported. We used identical statistical methods for the analysis in each city. Associations between daily admissions and pollutant levels were estimated using Poisson regression. Nonparametric smoothing methods were used to model seasonality and the nonlinear dependence of admissions on temperature, humidity, and influenza admissions. For respiratory admissions (> or = 65 years of age), significant positive associations were observed with particulate matter < 10 microm in aerodynamic diameter (PM(10), nitrogen dioxide, sulfur dioxide, and ozone in both cities. These associations tended to be stronger at shorter lags in Hong Kong and at longer lags in London. Associations were stronger in the cool season in Hong Kong and in the warm season in London, periods during which levels of humidity are at their lowest in each city. For cardiac admissions (all ages) in both cities, significant positive associations were observed for PM(10), NO(2), and SO(2) with similar lag patterns. Associations tended to be stronger in the cool season. The associations with NO(2) and SO(2) were the most robust in two-pollutant models. Patterns of association for pollutants with ischemic heart disease were similar in the two cities. The associations between O(3) and cardiac admissions were negative in London but positive in Hong Kong. We conclude that air pollution has remarkably similar associations with daily cardiorespiratory admissions in both cities, in spite of considerable differences between cities in social, lifestyle, and environmental factors. The results strengthen the argument that air pollution causes detrimental short-term health effects.

In-hospital formula supplementation is common in Hong Kong hospitals and appears to be detrimental to breastfeeding duration. Continued efforts should be made to avoid the provision of infant formula to breastfeeding babies while in the hospital unless medically indicated.

The World Health Organization advocates the goal of universal coverage of health systems to ensure that everyone can avail the services they need and are protected from the associated financial risks. Governments are increasingly engaging and interacting with the private sector in initiatives collectively referred to as public-private partnerships (PPPs) to enhance the capacity of health systems to meet this objective. Understanding the values that motivate partners and demonstrating commitment for building relationships were found to be key lessons in building effective PPPs; however there, remain many research gaps. This study focusses on the practice of PPPs at the inter-organisational (meso) level and interpersonal (micro) level in Hong Kong Special Administrative Region (HKSAR). The influence of the structural components of different PPPs on stakeholder interpretation and actions, as well as the eventual outcomes of the PPPs, is examined, in terms of a realist evaluation, which applies a context-mechanism-outcome configuration as the research methodology. Seven key factors initiating commitment in a partnership, critical for sustainable PPPs, were identified as follows: (1) building of trust; (2) clearly defined objectives and roles; (3) time commitment; (4) transparency and candid information, particularly in relation to risk and benefit; (5) contract flexibility; (6) technical assistance or financial incentive behind procedural arrangements; and (7) the awareness and acceptability of structural changes related to responsibility and decisions (power and authority).

BackgroundBoth influenza viruses and air pollutants have been well documented as major hazards to human health, but few epidemiologic studies have assessed effect modification of influenza on health effects of ambient air pollutants.ObjectivesWe aimed to assess modifying effects of influenza on health effects of ambient air pollutants.MethodsWe applied Poisson regression to daily numbers of hospitalizations and mortality to develop core models after adjustment for potential time-varying confounding variables. We assessed modification of influenza by adding variables for concentrations of single ambient air pollutants and proportions of influenza-positive specimens (influenza intensity) and their cross-product terms.ResultsWe found significant effect modification of influenza (p < 0.05) for effects of ozone. When influenza intensity is assumed to increase from 0% to 10%, the excess risks per 10-μg/m3 increase in concentration of O3 increased 0.24% and 0.40% for hospitalization of respiratory disease in the all-ages group and ≥ 65 year age group, respectively; 0.46% for hospitalization of acute respiratory disease in the all-ages group; and 0.40% for hospitalization of chronic obstructive pulmonary disease in the ≥ 65 group. The estimated increases in the excess risks for mortality of respiratory disease and chronic obstructive pulmonary disease in the all-ages group were 0.59% and 1.05%, respectively. We found no significant modification of influenza on effects of other pollutants in most disease outcomes under study.ConclusionsInfluenza activity could be an effect modifier for the health effects of air pollutants particularly for O3 and should be considered in the studies for short-term effects of air pollutants on health.

Quality EOL care for older populations requires many core components but the local context and implementation issues may ultimately determine if these elements can be incorporated into the system to improve care. Changes at the macro-level (system/national), meso-level (organizational), and micro-level (individual) will be required to successfully implement service changes to provide holistic and person-centered EOL care for elderly populations.

Super-spreading events in an outbreak can change the nature of an epidemic. Therefore, it is useful for public health teams to determine whether an ongoing outbreak has any contribution from such events, which may be amenable to interventions. We estimated the basic reproductive number (R 0 ) and the dispersion factor (k) from empirical data on clusters of epidemiologically linked coronavirus disease 2019 (COVID-19) cases in Hong Kong, Japan and Singapore. This allowed us to infer the presence or absence of superspreading events during the early phase of these outbreaks. The relatively large values of k implied that large cluster sizes, compatible with super-spreading, were unlikely.