Table 3 Definitions of the ideal and practical scenarios for each lifestyle factor

From: A simulation study of the impact of population-wide lifestyle modifications on life expectancy in the Chinese population

 

Ideal scenario

Practical scenario

Alternative scenario

Smoking

It is assumed that all people who currently smoke in the target age group will quit smoking.

It is assumed that the prevalence of current smoking in the target age group will reduce to 20% (only in men).

It is assumed that the whole population never smoke.

Alcohol intake*

It is assumed that all people with excessive alcohol use in the target age group will become moderate drinkers.

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It is assumed that all people with excessive alcohol use in the whole population will become non-daily drinkers.

Physical activity

It is assumed that all individuals in the target age group will increase their physical activity by 4 MET-h/d for those under 65 and 2 MET-h/d for those aged 65 or older.

It is assumed that all individuals in the target age group will increase their physical activity by 2 MET-h/d for those under 65 and 1 MET-h/d for those aged 65 or older.

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Dietary habits

It is assumed that all individuals in the target age group will

(1) eat 200 g more fresh fruits per day

(2) eat 50 g more fish/seafood per day

It is assumed that all individuals in the target age group will

(1) eat 100 g more fresh fruits per day

(2) eat 20 g more fish/seafood per day

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  1. MET-h/d indicates metabolic equivalent task hours per day.
  2. *Excessive alcohol use was defined as consuming ≥30 g of pure alcohol per day, and moderate alcohol use was defined as consuming <30 g.