King's College London, Florence Nightingale School of Nursing and Midwifery, James Clerk Maxwell Building, Waterloo Road, London, UK.
Int J Behav Nutr Phys Act. 2013 Dec 4;10:131. doi: 10.1186/1479-5868-10-131.
Health professionals play a key role in the prevention and treatment of excess weight and obesity, but many have expressed a lack of confidence in their ability to manage obese patients with their delivery of weight-management care remaining limited. The specific mechanism underlying inadequate practices in professional weight management remains unclear. The primary purpose of this study was to examine a self-efficacy theory-based model in understanding Registered Nurses' (RNs) professional performance relating to weight management.
A self-report questionnaire was developed based upon the hypothesized model and administered to a convenience sample of 588 RNs. Data were collected regarding socio-demographic variables, psychosocial variables (attitudes towards obese people, professional role identity, teamwork beliefs, perceived skills, perceived barriers and self-efficacy) and professional weight management practices. Structural equation modeling was conducted to identify correlations between the above variables and to test the goodness of fit of the proposed model.
The survey response rate was 71.4% (n = 420). The respondents reported a moderate level of weight management practices. Self-efficacy directly and positively predicted the weight management practices of the RNs (β = 0.36, p < 0.01), and fully or partially mediated the relationships between perceived skills, perceived barriers, professional role identity and teamwork beliefs and weight management practices. The final model constructed in this study demonstrated a good fit to the data [χ2 (14) =13.90, p = 0.46; GFI = 0.99; AGFI = 0.98; NNFI = 1.00; CFI = 1.00; RMSEA = 0.00; AIC = 57.90], accounting for 38.4% and 43.2% of the variance in weight management practices and self-efficacy, respectively.
Self-efficacy theory appears to be useful in understanding the weight management practices of RNs. Interventions targeting the enhancement of self-efficacy may be effective in promoting RNs' professional performance in managing overweight and obese patients.
健康专业人员在预防和治疗超重和肥胖方面发挥着关键作用，但许多人表示对自己管理肥胖患者的能力缺乏信心，他们提供的体重管理服务仍然有限。专业体重管理中实践不足的具体机制尚不清楚。本研究的主要目的是基于自我效能理论模型，研究注册护士（RN）与体重管理相关的专业表现。
根据假设模型，开发了一份自我报告问卷，并对 588 名 RN 进行了便利抽样。收集了关于社会人口统计学变量、心理社会变量（对肥胖者的态度、专业角色认同、团队合作信念、感知技能、感知障碍和自我效能）和专业体重管理实践的数据。进行结构方程建模，以确定上述变量之间的相关性，并测试所提出模型的拟合优度。
调查回复率为 71.4%（n=420）。受访者报告了中等水平的体重管理实践。自我效能直接积极地预测了 RN 的体重管理实践（β=0.36，p<0.01），并部分或完全中介了感知技能、感知障碍、专业角色认同和团队合作信念与体重管理实践之间的关系。本研究构建的最终模型与数据拟合良好[χ2（14）=13.90，p=0.46；GFI=0.99；AGFI=0.98；NNFI=1.00；CFI=1.00；RMSEA=0.00；AIC=57.90]，分别解释了体重管理实践和自我效能的 38.4%和 43.2%的方差。
自我效能理论似乎有助于理解 RN 的体重管理实践。针对增强自我效能的干预措施可能对促进 RN 管理超重和肥胖患者的专业表现有效。
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