What is the sampling frame for each phase of the Whitehall study (Whitehall I and II)?

The purpose of this assessment is to consolidate students

Whitehall I was conducted with 18,000 men civil servants in 20 London-based department. There were 10,308 non-manual employees and 7,636 clerical staff. Whitehall II included a further 10,308 male administrative staff. This gave a combined sample size of 15,415. Both phases included participants who were between 35-55 years old at the beginning. They provided data on employment and lifestyle information, such as their diets and exercise levels. In order to detect any change in the health and mortality rates, follow-up surveys were performed every three years.

This type of sampling strategy can provide valuable insight into the effects of different factors on various outcomes. These insights can help to prevent future diseases or improve overall health and well-being.

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