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達能營(yíng)養中心第九屆學(xué)術(shù)研討會(huì )論文集

趙勇1李廷玉2易靜1王宏1魏小平1
(1重慶醫科大學(xué)營(yíng)養與食品衛生學(xué)教研室,重慶,400016;2重慶醫科大學(xué)附屬兒童醫院,重慶,400014)

摘要:目的本研究針對當前高校大學(xué)生存在的營(yíng)養問(wèn)題,探討同伴教育模式在高校開(kāi)展營(yíng)養教育的可行性和有效性。方法在重慶醫科大學(xué)營(yíng)養協(xié)會(huì )會(huì )員以及實(shí)驗組中選拔和培訓同伴教育者,對實(shí)驗組學(xué)生進(jìn)行一個(gè)月的現場(chǎng)集中同伴營(yíng)養教育,并于項目執行中期進(jìn)行過(guò)程評價(jià)。分別于干預前(時(shí)刻Ⅰ)、干預后即刻(時(shí)刻Ⅱ)、干預后4個(gè)月(時(shí)刻Ⅲ)、干預后6個(gè)月(時(shí)刻Ⅳ)對實(shí)驗組及對照組進(jìn)行干預后營(yíng)養知、信、行(K-A-B)轉變的效果評價(jià)。結果干預組與對照組均衡性較好(P>005),干預效果顯著(zhù)。時(shí)刻Ⅱ干預組對營(yíng)養知識、態(tài)度以及行為的得分均高于對照組(分別為P<0001,P<005,P<005),特別是營(yíng)養知識高于對照組078分。時(shí)刻Ⅲ干預組對營(yíng)養知識以及態(tài)度得分明顯高于對照組(均為P<0001),但營(yíng)養行為得分沒(méi)有明顯高于對照組(P>005)。時(shí)刻Ⅳ干預組對營(yíng)養知識以及營(yíng)養行為得分明顯高于對照組(分別為P<0001,P<001)。但態(tài)度得分沒(méi)有明顯高于對照組(P>005)。結論對大學(xué)生運用同伴教育模式進(jìn)行營(yíng)養健康教育具有可行性和有效性,建議進(jìn)一步推廣應用。
關(guān)鍵詞:同伴教育,營(yíng)養教育,大學(xué)生,健康教育,營(yíng)養知識

Study on Developing Collegebased Nutritional Education through
Peereducation ApproachY Zhao 1 , Ty Li2, J Yi1
(1Department of Nutrition and Food Hygiene Chongqing Medical University, Chongqing, China 400016)
(2 Childrens Hospital,Chongqing University of Medical Science,Chongqing, China, 400014)

Background: College students are a special group, whose good nutrition status is the basis of their health However, up to now, many problems of nutrition exist among college students, which will impose a negative impact on the development and study of the college studentsObjective: To investigate feasibility and effectiveness of collegebased nutritional education through peereducation approachDesign: A cluster sample was drawn in 18 classes of freshmen in two colleges in Chongqing, and freshmen were divided into intervention group (amount to 289 students) and control group (amount to 344 students) For design of the education content and strategy, qualitative and quantitative methods were employed to diagnose the nutrition problems which exist among the student and the need of nutritional education Peer education was conducted among intervention group for one month by the peereducators selected from students in Chongqing University of Medical Sciences and experimental college, meanwhile, the evaluation process was conducted The progression of KAB in target population was evaluated immediately after the intervention, 4 months later, and 6 months later Outcomes: Freshmen obtained the nutrition knowledge limitedly, and had deficient nutrition knowledge, some nutrition mistaken ideas and some bad diet behavior habits The key content of education demand were including: the physiological function and main source of the important nutrients, nutritive value of all kinds of food, correct diet view, obesity, beauty and health mistaken idea, and “Chinese residents diet guide and balanced diet pagoda ”
The course was appraised: Intervene content suitable, intervene opportunity and place fully considering situation of goal crowd, carrying out successfully Peer education is feasible The result is appraised: The balance between the two groups was tested statistically(P>005)
The result of intervene was prominent Nutrition knowledge, the attitude and behavior score of intervene group were higher than that of the control group at once after intervening(P<0001,P<005,P<005) Nutrition knowledge and attitude score of intervene group were higher than that of control group four months after intervening(P<0001), but the nutrition behavior scores was not obviously higher than that of control group (P>005); nutrition knowledge and nutrition behavior score of intervene group were apparently higher than that of control group six months after intervening(P<0001,P<001), but attitude scores was not obviously higher than that of control group(P>005)
Nutrition knowledge score of intervene group was lowest before intervene (P<005), and it was highest at once after intervening(P<005) The score of 4 months after intervening was obviously lower than that of at once after intervening(P<005), but the significant improvement than before intervening(P>005) has not been seen, and the improvement 6 months after intervening was obviously(P<005) Nutrition attitude score of intervene group was not obviously different between at once intervene and before intervene, between four months and six months after intervening(P>005), but that of the last two time points were more than first two time points(P<005) Behavioral scores of intervene group were no obvious difference among before intervening, at once and 6 months after intervening (P>005), but compared with these three time points that of 4 months after intervening was lower(P<005)Conclusions The study indicated that it is feasible and effective of Collegebased Nutritional Education through Peereducation Approach, so it should be further applying
Keywords: peer education, nutrition education, college students

近年來(lái)同伴教育已被廣泛應用于藥物濫用預防、艾滋病預防、性教育以及其他健康教育領(lǐng)域[1-10],而它在營(yíng)養宣教領(lǐng)域的應用在國內外尚少[11-12],針對大學(xué)生群體的未見(jiàn)報道。本課題組針對目前高校學(xué)生存在的營(yíng)養問(wèn)題,嘗試以同伴教育模式為載體,以行為干預作為切入口發(fā)展適合中國國情的營(yíng)養健康教育。該模式一方面可以有效的解決施教人員匱乏的問(wèn)題,另一方面,可以大大提高施教工作范圍和效果,通過(guò)相互融洽、有信任感的同齡伙伴逐級引導傳遞效應,使施教工作范圍和效果達到幾何級數增高效應的目的,以探討同伴教育模式在中國現有條件下的可行性和有效性,為同伴教育模式在營(yíng)養教育方面的應用提供科學(xué)的思路。
一、對象與方法
1 對象:選取重慶渝中區某學(xué)院為干預學(xué)校,文理科各一個(gè)系,整群抽取一年級九個(gè)班的學(xué)生,共289人。選取九龍坡區某學(xué)院為對照學(xué)校,選擇與干預學(xué)校相匹配的文理科各一個(gè)系,整群抽取9個(gè)班的學(xué)生,共344人。干預后即刻、干預后4個(gè)月、干預后6個(gè)月兩組調查人數分別是:304人和270人;239人和289人;240和244人。
2 方法:運用定性和定量研究相結合的方法診斷大學(xué)生存在的營(yíng)養問(wèn)題和對營(yíng)養宣教的需求,設計出有針對性的營(yíng)養教育內容和方案。在重慶醫科大學(xué)營(yíng)養協(xié)會(huì )會(huì )員以及實(shí)驗組中選拔和培訓同伴教育者,對實(shí)驗組學(xué)生進(jìn)行一個(gè)月的現場(chǎng)集中同伴營(yíng)養教育,并于項目執行中期進(jìn)行過(guò)程評價(jià)。
21 問(wèn)卷設計:參考健康教育KAB(知識態(tài)度行為)模型及相關(guān)文獻,結合實(shí)際需求診斷以及預調查分析結果,設計調查問(wèn)卷,并反復修改驗證,進(jìn)行信度和效度分析結果良好。間隔一周的復測結果證明調查表較好的信度,復測系數(α)為0635。
22 問(wèn)卷內容:包括指導語(yǔ)、一般人口統計學(xué)資料、營(yíng)養知識、態(tài)度、行為情況,營(yíng)養知識獲取途徑等。問(wèn)卷題目和記分情況:其中知識問(wèn)題有16道題,滿(mǎn)分16分,得分越高提示相關(guān)知識掌握越好;有關(guān)態(tài)度有9道題,滿(mǎn)分9分,得分越高表示正向態(tài)度越好;行為包括常見(jiàn)食物的消費頻率以及膳食制度等,共40題,滿(mǎn)分40分,得分越高表示正向行為狀況越好。
23 問(wèn)卷調查:調查以班級為單位,采用無(wú)記名方式進(jìn)行。測試前對調查人員進(jìn)行統一、嚴格培訓并預做。基線(xiàn)調查與復測均使用相同問(wèn)卷。問(wèn)卷采取現場(chǎng)發(fā)放、現場(chǎng)指導填寫(xiě)、現場(chǎng)收回調查表的形式,及時(shí)填寫(xiě)《現場(chǎng)調查記錄表》,以確保填寫(xiě)質(zhì)量。問(wèn)卷回收情況:發(fā)放問(wèn)卷650份,有效問(wèn)卷633份,有效率9738%。
24 效果評價(jià):分別于干預前(時(shí)刻Ⅰ)、干預后即刻(時(shí)刻Ⅱ)、干預后4個(gè)月(時(shí)刻Ⅲ)、干預后6個(gè)月(時(shí)刻Ⅳ)對實(shí)驗組及對照組進(jìn)行干預后營(yíng)養知、信、行(KAB)轉變的效果評價(jià)。
25 資料整理與統計分析:對回收的有效問(wèn)卷原始資料編號整理并錄入計算機,用EpiData30、Excel2000建立數據庫。按統一標準賦值,對營(yíng)養知識、態(tài)度和行為分別評分,采用的統計軟件為SAS80,進(jìn)行t檢驗、卡方檢驗、SNKGrouping檢驗、方差分析。
二、結果
1 基本情況
11 一般情況
重慶渝中區某學(xué)院為干預學(xué)校(Ⅰ組),文理科各一個(gè)系,整群抽取九個(gè)班的學(xué)生,共289人;年齡在17-22歲,平均19歲。選取九龍坡區某學(xué)院為對照學(xué)校(Ⅱ組),選擇與干預學(xué)校相匹配的文理科各一個(gè)系,整群抽取9個(gè)班的學(xué)生,共344人;年齡在17-23歲,平均20歲。兩校共計633人,男生401人,女生232人。


通過(guò)對兩組學(xué)生人口學(xué)特征的比較,除年齡對照組學(xué)生高于干預組外,其余性別、專(zhuān)業(yè)、身體質(zhì)量指數、家庭所在地等人口學(xué)特征的差異無(wú)統計學(xué)意義(P>005)。在學(xué)生家庭背景情況中,父母的文化程度和職業(yè)均無(wú)顯著(zhù)性差異(P>005)。
12 兩組學(xué)生營(yíng)養知識來(lái)源無(wú)顯著(zhù)性差異(表1)。
13 干預前兩組學(xué)生營(yíng)養知識、態(tài)度和行為得分沒(méi)有顯著(zhù)性差異(表2)。

2干預效果評估
21干預后即刻干預組對營(yíng)養知識、態(tài)度以及行為的得分均高于對照組,特別是營(yíng)養知識高于對照組078分(表3)。

22 干預后四個(gè)月干預組對營(yíng)養知識以及態(tài)度得分明顯高于對照組。但營(yíng)養行為得分沒(méi)有明顯高于對照組(表4)。

23 干預后六個(gè)月干預組對營(yíng)養知識以及營(yíng)養行為得分明顯高于對照組。但態(tài)度得分沒(méi)有明顯高于對照組(表5)。


24 干預組對營(yíng)養知識得分時(shí)刻I最低,時(shí)刻II最高,時(shí)刻III比時(shí)刻II明顯低,比時(shí)刻I比較未見(jiàn)顯著(zhù)性提高,時(shí)刻IV又明顯提高。干預組對營(yíng)養態(tài)度得分時(shí)刻I和時(shí)刻II無(wú)明顯差別、時(shí)刻III和時(shí)刻IV無(wú)顯著(zhù)性提高。但后兩個(gè)時(shí)間點(diǎn)比前兩個(gè)時(shí)間點(diǎn)營(yíng)養態(tài)度得分顯著(zhù)性提高。干預組對營(yíng)養行為得分時(shí)刻I和時(shí)刻II以及時(shí)刻IV無(wú)明顯差別、但時(shí)刻III與這三個(gè)時(shí)間點(diǎn)比較顯著(zhù)性低。
對照組對營(yíng)養知識得分時(shí)刻I與時(shí)刻II無(wú)顯著(zhù)性差別,但時(shí)刻III比前兩時(shí)刻明顯低,時(shí)刻IV比前三個(gè)時(shí)刻明顯低。對照組對營(yíng)養態(tài)度得分時(shí)刻I和時(shí)刻II無(wú)明顯差別、時(shí)刻III明顯最低,時(shí)刻IV比前兩個(gè)時(shí)刻低。但后兩個(gè)時(shí)間點(diǎn)比前兩個(gè)時(shí)間點(diǎn)營(yíng)養態(tài)度得分顯著(zhù)性降低。對照組對營(yíng)養行為得分時(shí)刻I和時(shí)刻II無(wú)明顯差別;時(shí)刻III與時(shí)刻IV無(wú)明顯差別;但前兩者顯著(zhù)高于后兩者。(表7)


三、討論
有研究提示同伴教育方法在知識與態(tài)度的干預效果上都優(yōu)于傳統的教師授課方法。人們更認同同伴[19-24],另外,在促使行為改變的效果上,國外研究證明,同伴是決定人們行為的極重要因素。WHO已經(jīng)確認同伴項目是改變人們行為特別是青少年行為的有效方式。同伴教育中,當教育者結合親身經(jīng)歷、體驗或感受來(lái)傳授知識、態(tài)度,輔以生動(dòng)、活潑、通俗的語(yǔ)言舉止,并實(shí)現教育者與受教育者的互動(dòng)時(shí),能顯著(zhù)強化教育效果;而且同伴間都有心理上的認同感。有研究提示內源性同伴教育優(yōu)于外源性同伴教育[25],由于營(yíng)養同伴教育者的素質(zhì)會(huì )影響干預效果,內源性同伴教育為同班同學(xué),也是本班骨干與受教育者在年齡、性別、種族、文化程度等方面高度相似,而且相互熟悉,因此溝通更融洽,更直接,更能有效地傳授知識、解決疑問(wèn)和更新觀(guān)念;受教育者更容易投入角色,熱情高,敢于討論敏感或切身問(wèn)題。外源性同伴教育者來(lái)源于受到嚴格培訓的醫學(xué)生,他們在受教育者眼中有一定權威性。所以本研究采用了兩者相結合(兩者比例為7∶1)的同伴教育模式。
本次試驗的干預方法采用同伴教育模式,并結合需求評估、基線(xiàn)調查現況,參照國內外同伴教育的方法、內容、模式,結合具體實(shí)際情況擬定。即既考慮了目前大學(xué)生在營(yíng)養知識、態(tài)度、行為方面存在的一些共性問(wèn)題也顧及了目標人群的實(shí)際情況。研究結果表明本次試驗效果明顯,主要表現在:
1 學(xué)生營(yíng)養知識
在時(shí)刻II、干預后四個(gè)月以及干預后六個(gè)月三個(gè)隨訪(fǎng)時(shí)刻,干預組學(xué)生的營(yíng)養知識得分均高于對照組,表明與對照組比較干預效果明顯。干預組的營(yíng)養知識得分時(shí)刻I最低,時(shí)刻II最高,時(shí)刻III比時(shí)刻II明顯低,比時(shí)刻I比較未見(jiàn)顯著(zhù)性提高,時(shí)刻IV又明顯提高。其原因可能是從時(shí)刻II到4個(gè)月期間有個(gè)暑假,期間同伴教育者的作用無(wú)法發(fā)揮,對學(xué)生營(yíng)養知識來(lái)說(shuō)是個(gè)負面影響因素,需要長(cháng)期強化教育。
對照組對營(yíng)養知識得分時(shí)刻I與時(shí)刻II無(wú)顯著(zhù)性差別,但時(shí)刻III比前兩時(shí)刻明顯低,時(shí)刻IV比前三個(gè)時(shí)刻明顯低。其原因除了暑假因素外,可能還與高校沒(méi)有開(kāi)展營(yíng)養宣教有關(guān),他們的營(yíng)養知識主要來(lái)源于中學(xué)時(shí)期,進(jìn)入大學(xué)后沒(méi)有得到繼續教育,所以有逐漸減少的趨勢。
2 學(xué)生營(yíng)養態(tài)度
在時(shí)刻II和干預后四個(gè)月,干預組的營(yíng)養態(tài)度得分均高于對照組,但干預后六個(gè)月干預組的態(tài)度得分沒(méi)有明顯高于對照組。表明對于營(yíng)養態(tài)度方面,干預的近期效果比較好,但中期效果不是那么顯著(zhù),這與常春、鈕文異等人對大學(xué)生進(jìn)行預防艾滋病同伴教育效果評價(jià)的結果一致。
干預組的營(yíng)養態(tài)度得分時(shí)刻I和時(shí)刻II無(wú)明顯差別、時(shí)刻III和時(shí)刻IV無(wú)顯著(zhù)性提高。但后兩個(gè)時(shí)間點(diǎn)比前兩個(gè)時(shí)間點(diǎn)營(yíng)養態(tài)度得分顯著(zhù)性提高。表明營(yíng)養態(tài)度的干預效果出現稍微晚一些,時(shí)刻III才開(kāi)始提高,以后一直保持效果到時(shí)刻IV。
對照組對營(yíng)養態(tài)度得分時(shí)刻I和時(shí)刻II無(wú)明顯差別、時(shí)刻III明顯最低,時(shí)刻IV比前兩個(gè)時(shí)刻低。但后兩個(gè)時(shí)刻比前兩個(gè)時(shí)刻營(yíng)養態(tài)度得分顯著(zhù)性降低,這與營(yíng)養知識的得分相對應。在沒(méi)有同伴教育干預的作用下,進(jìn)入大學(xué)的學(xué)生營(yíng)養態(tài)度呈下降趨勢。
3 學(xué)生營(yíng)養行為
時(shí)刻II與干預后六個(gè)月干預組對營(yíng)養行為的得分均高于對照組。而干預后四個(gè)月?tīng)I養行為得分沒(méi)有明顯高于對照組。干預組對營(yíng)養行為得分時(shí)刻I和時(shí)刻II以及時(shí)刻IV無(wú)明顯差別、但時(shí)刻III與這三個(gè)時(shí)間點(diǎn)比較顯著(zhù)性低。這表明營(yíng)養行為的改變比較困難,其間的暑假對他們行為的影響是負面的,暑假期間也缺乏同伴教育者的正向影響。
對照組對營(yíng)養行為得分時(shí)刻I和時(shí)刻II無(wú)明顯差別;時(shí)刻III與時(shí)刻IV無(wú)明顯差別;但前兩者顯著(zhù)高于后兩者。這進(jìn)一步表明大學(xué)生進(jìn)入大二后,飲食行為反而不科學(xué),提示在高校開(kāi)展營(yíng)養教育的必要性。
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