Sims et al., on the other hand, found a decline across the full range and the largest reductions in absolute terms were observed in children in high exposure groups (for example, children whose both parents smoked). In the United States, for example, cotinine levels of the most heavily exposed 5% of children changed little between 1988––02. The reductions in exposure to SHS have not been distributed equally. Data from the National Health and Nutrition Examination Survey (NHANES) show that cotinine levels for children aged 4–11 dropped by almost 75% during the 1990s. Similar findings come from the United States. An earlier English study of secondary schoolchildren reported almost a 50% fall in salivary cotinine levels between 19. There was a consistent and sizable decline-a 59% drop in the geometric mean cotinine.

report saliva cotinine levels from nationally representative samples of English children aged 4–15 years, who participated in surveys held between 19. Ĭhanges in homes are more difficult to track, but there have also been significant gains here.

Among middle-aged non-smoking men who took part in the British Regional Heart Study, cotinine levels at 20-year follow-up were, on average, one-seventh of the levels recorded in 1978–80. Improvements are most evident in the work-place, where many countries have comprehensive restrictions on smoking, with high levels of compliance and substantial reductions in the exposure of non-smokers to second-hand smoke (SHS). Steinfeld, declared in 1971 that ‘Nonsmokers have as much right to clean indoor air . . . as smokers have to their so-called right to smoke’, a great deal has been achieved. Since the US Surgeon General of the time, Jesse L. The decline in passive smoking is a public health success story.

Smoking sims 4