Giang, P.N., Dung do V., Bao Giang, K., et al. (2014). The Effect of Temperature on Cardiovascular Disease Hospital Admissions Among Elderly People in Thai Nguyen Province, Vietnam. Global Health Action. 7:23649.
Cardiovascular disease (CVD) admissions from four hospitals over 5 years were merged with weather data to determine if temperature affected hospital admissions among elderly people with CVD. The authors found that CVD admissions increased in the elderly during a period of 4-15 days following exposure to extreme cold, peaking at around a week's time after exposure.