Analysis Of The Adolescents Physical Growth Development Differences Among The Provinces And The Change Of Health Equity In China From1985to2010

Objective: To study adolescents growth and development trend in our countryfrom1985to2010.Analysis the level of physical growth and physical developmenttrends in east-central-west regions adolescents from1985to2010.To compared theadolescents of physical growth and physical development changes between the highestGDP per capita area (Shanghai) and the lowest per capita GDP regions (Guizhou)in1985and2010. To research health equity changes of the growth and developmentabout7-18years old adolescents,and to provide the scientific evidence on improving thephysical constitution and health of Chinese adolescents.Methods: By using the data from the National Students physique SurveyPublished, between1985and2010Chinese Han nationality students aged from7to18,including the national provinces except Tibet and Taiwan province. The samples asfollows: in1985,1991,1995,2000,2005,2010, the number of samples is409946,175555,208638,223772,234153,215203respectively.Students aged from7to18,everyyear is divided into a group, a total of12groups and roughly equal number of each agegroups; Divided into four groups:urban boy, urban girl, rural boy, rural girl.Economicindicators from the national statistical database provided the GDP and the provincialGDP per capita.Using SPSS18.0and Excel software to measure analysis data.The dataabout east-central-west regions adolescents height and weight were merged by usingweighted mean methods in1985and2010. The difference in height and weight wasanalyzed by Z test performed.By the methods of poor, concentration index analysis ofhealth equity:analyzed the adolescents of the height, weight differences betweenShanghai(the highest per capita GDP) and Guizhou provinces (lowest per capitaGDP).The difference was analyzed by Z test performed. Calculated the7-18year oldsconcentration index of height and weight.Results:1.The height and weight of the various age groups showed a trend of increased in urban boy, urban girl, rural boy, rural girl were5.95cm,4.27cm,7.34cm,5.54cm and urban boy, urban girl, rural boy, rural girl were8.71kg,5.26kg,6.84kg,4.19kg.2.During1985to2010, the growth levels of the eastern7to18years oldadolescents in height was higher than the central and western(P<0.05orP<0.01).In1985the eastern regions7-14years old adolescents weight were greater than the average incentral and western regions,In2010the eastern region7-17years old adolescentsweight were greater than the average in central and western regions(P<0.05orP<0.01).In1985the gap of height between east and central adolescents was1.37cm (urban boy),1.35cm(urban girl),1.33cm(rural boy),1.03cm(rural girl); the gap of height betweeneast and west adolescents was2.76cm (urban boy),2.39cm(urban girl),1.93cm(ruralboy),1.58cm(rural girl). In2010the gap of height between east and central adolescentswas1.91cm(urban boy),1.66cm(urban girl),1.91cm(rural boy),1.53cm(rural girl); thegap of height between east and west adolescents was3.48cm(urban boy),3.08cm(urbangirl),4.35cm(rural boy),3.76cm(rural girl). In1985the gap of weight between east andcentral adolescents was1.07kg(urban boy),0.68kg(urban girl),0.49kg(rural boy),0.25kg(rural girl); the gap of weight between east and west adolescents was2.36kg(urban boy),1.57kg(urban girl),0.99kg(rural boy),0.74kg(rural girl). In2010thegap of weight between east and central adolescents was1.95kg(urban boy),1.30kg(urban girl),2.04kg(rural boy),1.19kg(rural girl); the gap of weight between eastand west adolescents was4.39kg(urban boy),3.00kg(urban girl),4.98kg(rural boy),3.28kg(rural girl). Compared with1985,in2010the east-west region students averageheight, weight difference was greater than the east-central region.In east and centralregions of urban and rural increases of height and weight of the adolescents differencesnot too much.East and west rural teenagers average height and weight difference isbigger than the growth of urban.3.During1985to2010, the growth levels of the Shanghai adolescents in height andweight was better than the Guizhou(P<0.05or P<0.01).In1985the gap of heightbetween Shanghai and Guizhou adolescents was7.46cm (urban boy),5.83cm(urbangirl),6.67cm(rural boy),6.17cm(rural girl); In2010the gap of height between Shanghaiand Guizhou adolescents was8.18cm(urban boy),6.94cm(urban girl),10.45cm(ruralboy),8.89cm(rural girl).In1985the gap of weight between Shanghai and Guizhouadolescents was4.85kg(urban boy),2.84kg(urban girl),2.29kg(rural boy),1.46kg(rural girl).In2010the gap of weight between Shanghai and Guizhou adolescents was7.63kg(urban boy),4.91kg(urban girl),9.99kg(rural boy),5.94kg(rural girl). From1985to2010, the height growth and weight increase of adolescents in the area (Shanghai)with highest GDP per capita in China was significantly higher than these for the lowestGDP per capita regions (Guizhou).4.The height and weight concentration index of the adolescents were negative, thatmeans adolescents growth and development inequity in our country mainly in theeconomic developing areas. From1985to2010the adolescents growth anddevelopment health inequity was increased in different social economy level.Conclusion:1.1985-2010Chinese han nationality adolescents aged7-18height and weight ofthe various groups showed a trend of increased. Height growth of rural students wasgreater than the urban students, weight increase of rural students was less than urbanteenagers.2.The average level on height and weight of adolescents in east areas were morethan those of central and west. Compared with1985, the average level on height andweight of adolescents between the east region and central,west region was widening in2010.3.From1985to2010between the highest GDP per capita (Shanghai) and thelowest per capita GDP regions (Guizhou) the adolescents height and weight differencewas increased.4.From1985to2010the adolescents growth and development health inequity wasincreased in different social economy level.