本文選題：青少年 + 青春發(fā)動(dòng)時(shí)相��； 參考：《鄭州大學(xué)》2017年碩士論文

【摘要】：目的追蹤觀察鄭州市中小學(xué)生青春發(fā)動(dòng)時(shí)相的現(xiàn)狀及發(fā)動(dòng)提前可能的影響因素,并探討這些因素對(duì)青春發(fā)動(dòng)時(shí)相影響可能的性別差異,為揭示青春發(fā)動(dòng)時(shí)相影響機(jī)制提供依據(jù)。方法本研究選取了鄭州市區(qū)3所學(xué)校的小學(xué)二三年級(jí)、初一二三年級(jí)女生;小學(xué)三四年級(jí)、初一二三年級(jí)男生,于2014年10月進(jìn)行有關(guān)青春期發(fā)育的基線調(diào)查,并分別于2015年10月、2016年10月進(jìn)行后續(xù)的追蹤調(diào)查。此外,本研究還測(cè)量了部分樣本晨尿中的環(huán)境內(nèi)分泌干擾物的代謝產(chǎn)物。結(jié)果1.青春發(fā)動(dòng)時(shí)相追蹤基期年齡為8歲男生三次調(diào)查陰毛發(fā)育率依次為0、0、1%,辜丸發(fā)育達(dá)到Ⅱ期的比例依次為5.9%、12.7%、56.9%;基期年齡為9歲男生三次調(diào)查陰毛發(fā)育率依次為0%、2.0%、11.0%,睪丸發(fā)育達(dá)到Ⅱ期的比例依次為8%、17.3%、75.3%;基期年齡為12歲男生三次調(diào)查陰毛發(fā)育率依次為45.1%、96.1%、100%,睪丸發(fā)育達(dá)到Ⅱ期的比例依次為88.2%、100%、100%�；谀挲g為7歲女生三次調(diào)查月經(jīng)來(lái)潮率依次為0%、1.5%、2.3%,乳房發(fā)育達(dá)到Ⅱ期比例依次為18.2%、48.9%、100%;基期年齡為8歲女生三次調(diào)查月經(jīng)來(lái)潮率為0%、0.7%、9.9%,乳房發(fā)育達(dá)到Ⅱ期比例依次為48.9%、57.4%、80.9%;基期年齡為12歲女生三次調(diào)查月經(jīng)來(lái)潮率依次為70.0%、92.0%、97.0%,乳房發(fā)育達(dá)到Ⅱ期比例均為100%。2.青春發(fā)動(dòng)時(shí)相分布追蹤三次調(diào)查男生青春發(fā)動(dòng)時(shí)相提前率依次為17.8%、17.8%、20.3%;三次調(diào)查女生青春發(fā)動(dòng)時(shí)相提前率依次為12.1%、16.1%、21.7%。3.青春期發(fā)育與體格、體脂指標(biāo)分析男生青春期發(fā)育啟動(dòng)年齡與身高、體重、肩胛部皮褶厚度、腹部皮褶厚度之間相關(guān)(r=0.609、r=0.343、r=0.209、r=0.170,P值均0.05);女生青春期發(fā)育啟動(dòng)年齡與身高、體重、腰圍、體脂之間相關(guān)(r=0.809、r=0.623、r=0.262、r=-0.254,P值均0.05)。9、10、11、12歲組男生青春期發(fā)育啟動(dòng)者身高大于未啟動(dòng)者間;9、10、12歲組男生青春期發(fā)育啟動(dòng)者體重大于未啟動(dòng)者。同年齡組女孩青春期發(fā)育啟動(dòng)組的身高、體重、腰圍、上臂部皮褶厚度、肩胛部皮褶厚度、腹部皮褶厚度的均值均大于未啟動(dòng)組(P值均0.05)。4.青春期發(fā)育與體力活動(dòng)、接觸家用化學(xué)品等因素分析三次調(diào)查男生體力活動(dòng)得分的均值分別為12.6±5.9、13.8±6.2、14.6±6.2;女生體力活動(dòng)得分均值分別為11.1±5.0、10.7±4.6、11.5±4.8。三次調(diào)查男生日常接觸家用化學(xué)品的得分均值分別為2.7±1.9、2.2±1.7、2.2±2.5;女生日常接觸家用化學(xué)品的得分均值分別為2.7±2.0、2.5±1.8、2.6±2.2。三次調(diào)查男生接觸食品包裝材料的得分分別為0.8±1.0、0.8±1.0、0.7±0.9;女生接觸食品包裝材料的得分情況分別為0.8±1.0、0.7±1.0、0.9±1.0。三次調(diào)查男生心理行為發(fā)育困難總分分別為7.9±1.8、7.8±1.9、7.9±2.0,親社會(huì)行為得分分別為9.9±4.8、16.4±4.1、16.5±4.1;女生心理行為發(fā)育困難總分分別為7.2±2.0、7.5±2.0、7.4±2.2,親社會(huì)行為得分分別為 17.5±4.0、16.9±4.5、16.9±4.9。男女生的體力活動(dòng)得分、日常接觸家用化學(xué)品得分、食用食物的食品包裝材料得分、晨尿中環(huán)境內(nèi)分泌干擾物、心理行為發(fā)育等指標(biāo)與男女生的青春期發(fā)育啟動(dòng)年齡、各年齡男女生青春期發(fā)育啟動(dòng)及未啟動(dòng)間未見(jiàn)相關(guān)性。結(jié)論1.調(diào)查期間,同一年齡女孩,乳房發(fā)育率高于來(lái)潮率�；谡{(diào)查時(shí),男孩青春發(fā)動(dòng)提前率高于女孩,隨訪結(jié)束時(shí),女孩青春發(fā)動(dòng)提前率高于男孩。2.同一年齡女孩,青春期發(fā)育啟動(dòng)者的身高、體重、腰圍、上臂部皮褶厚度、肩胛部皮褶厚度、腹部皮褶厚度均比青春期發(fā)育未啟動(dòng)者大。3.男女生的體力活動(dòng)、日常接觸家用化學(xué)品、食物包裝材料、晨尿中環(huán)境內(nèi)分泌干擾物、心理行為發(fā)育等指標(biāo)與青春發(fā)動(dòng)時(shí)相與間未發(fā)現(xiàn)相關(guān)關(guān)系。
[Abstract]:Objective To observe and observe the status quo of young students' youth phase and the possible influencing factors of early initiation of youth initiation in Zhengzhou, and to explore the possible gender differences in the influence of these factors on youth initiation, and to provide a basis for revealing the mechanism of the impact of youth starting phase. Methods this study selected grade two or three of primary schools in 3 schools in the urban area of Zhengzhou. Two or three grade girls; grade three or four, grade two or three boys in grade two or three, conducted a baseline survey on puberty in October 2014, followed up in October 2015 and October 2016. In addition, the study also measured the metabolites of interferon in the ring of morning urine. Results 1. youth launched. The growth rate of pubic hair of 8 years old boys was 8 years old, and the proportion of the development of pubic hair was in turn, and the proportion of the development of Koo pill to stage II was 5.9%, 12.7%, 56.9%. The growth rate of pubic hair was 0%, 2%, 11%, and the percentage of testicular development reached stage II in turn was 8%, 17.3%, 75.3%, and the age of basal period was of boys of 12 years. The development rate of pubic hair in the three survey was 45.1%, 96.1%, 100%, and the proportion of testicular development to stage II was 88.2%, 100%. The rate of menstrual flow was 0%, 1.5%, 2.3%, and the ratio of the age of 100%. was 0%, 1.5%, 2.3%. 0.7%, 9.9%, the proportion of breast development to stage II was 48.9%, 57.4%, 80.9%, and three times for 12 year old girls in the base period was 70%, 92%, 97%, and the proportion of breast development to stage II was 100%.2. youth phase distribution tracking three investigation of male youth initiation rate in turn was 17.8%, 17.8%, 20.3%; The advance rate of adolescent girls was investigated in order of 12.1%, 16.1%, 21.7%.3. puberty development and physique. Body fat index was used to analyze the correlation between the age and height, weight, skin fold thickness of the scapula, and the thickness of abdominal skin fold (r=0.609, r=0.343, r=0.209, r=0.170, P value of 0.05), and the age and body of adolescent girls' puberty. The correlation between height, weight, waist circumference and body fat (r=0.809, r=0.623, r=0.262, r=-0.254, P value were all 0.05).9,10,11,12 years old boys were higher than those who did not start at adolescence. The weight of adolescent boys in 9,10,12 years old was greater than that of uninitiated. The height, weight, waistline, upper arm and upper arm of adolescent girls in the same age group were in the same age group. The mean of skin fold thickness, scapular skin fold thickness, and abdominal skin fold thickness were greater than that of unstarted group (P 0.05).4. puberty and physical activity. The average average of three boys' physical activity scores were 12.6 + 5.9,13.8 + 6.2,14.6 + 6.2 and 11.1 + 5 for female physical activity, respectively. The average score of daily exposure to household chemicals by.0,10.7 + 4.6,11.5 + 4.8. was 2.7 + 1.9,2.2 + 1.7,2.2 2.5, respectively, and the average score of female daily exposure to household chemicals was 2.7 + 2.0,2.5 + 1.8,2.6 + 2.2. three times, respectively. The scores of boys' exposure to food packaging materials were 0.8 + 1.0,0.8 + 1.0,0.7 + 0.9, respectively. The score of food packaging materials was 0.8 + 1.0,0.7 + 1.0,0.9 + 1.0. three times, respectively, the total score of boys' mental behavior development difficulty was 7.9 + 1.8,7.8 + 1.9,7.9 2 respectively. The score of prosocial behavior was 9.9 + 4.8,16.4 + 4.1, respectively, and the total score of girls' psychological behavior development was 7.2 + 2.0,7.5 + 2.2, respectively. The scores were 17.5 + 4.0,16.9 + 4.5,16.9 + 4.9., the scores of daily exposure to household chemicals, the score of food packaging materials, environmental endocrine disruptors in the morning urine, mental behavior development and so on, and the initiation age of male and female adolescent development, and the initiation of puberty of male and female students at all ages Conclusion during the 1. survey, the breast development rate of the same age girl was higher than that of the coming tide rate. In the basic period investigation, the young boys' youth start rate was higher than that of the girls. At the end of the follow-up, the young girl's youth initiation rate was higher than that of the boy.2. at the same age. The height, weight, waist circumference, and the upper arm skin fold were higher than that of the boys at the same age. Thickness, skin fold thickness of scapula, and thickness of abdominal skin fold are more than the physical activity of large.3. male and female students with uninitiated puberty. Daily exposure to household chemicals, food packaging materials, environmental endocrine disruptors in the morning urine, psychological behavior development and other indicators are not associated with the onset of youth.

【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：R179

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相關(guān)期刊論文 前10條

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本文編號(hào)：1845224