Ten-year trends in cardiovascular risk factors of Siberian adolescents.
OBJECTIVE
To evaluate trends in CVD risk profile of adolescent population in Novosibirsk during social and economic crisis in Russia (1989-1999).


METHODS
Three cross-sectional surveys of samples of schoolchildren aged 14-17 in 1989 (657), in 1994 (620) and in 1999 (626) were undertaken. Total sample was 1903 (914 males and 989 females). The programme of the surveys included a questionnaire (smoking and physical activity habits), measuring blood pressure, weight, serum lipids and lipoproteins, and a 24-hour dietary recall.


RESULTS
Prevalence of regular smoking (1 cig/day and more) decreased from 42% (1989) to 33% (1999) in males. Frequency of overweight (BMI > = 22.0) significantly decreased both among boys (from 29% to 7%) and girls (from 30% to 14%). The number of teenagers with high blood pressure (systolic or diastolic BP > = 140/90 mm Hg) also decreased in both gender groups. The prevalence of high total cholesterol (> = 200 mg/dl) significantly decreased from 22% to 6% in males and from 32% to 14% in females. The frequency of low HDL cholesterol (< = 40 mg/dl) also decreased in boys (from 28 to 8%) and girls (from 12.5% to 3%). Low physical activity (< = 2 h/week) was high and without any big changes.


CONCLUSIONS
The results obtained showed serious changes in the CVD risk profile of Siberian adolescents during the crisis period.
Denissova
D V
DV
Institute of Internal Medicine, Novosibirsk, Russia.
Zavjalova
L G
LG
D000293:Adolescent; D015992:Body Mass Index; D002318:Cardiovascular Diseases / Q000150:complications / Q000453:epidemiology*; D002784:Cholesterol / Q000097:blood; D003430:Cross-Sectional Studies; D015444:Exercise; D005260:Female; D006801:Humans; D006937:Hypercholesterolemia / Q000150:complications; D006973:Hypertension / Q000150:complications; D008297:Male; D009765:Obesity / Q000453:epidemiology; D015995:Prevalence; D012307:Risk Factors; D012800:Siberia / Q000453:epidemiology; D012907:Smoking / Q000453:epidemiology
D002784:Cholesterol