Wutoh Anthony K, Brown Carolyn M, Dutta Arjun P, Kumoji E Kuor, Clarke-Tasker Veronica, Xue Zhenyi
School of Pharmacy, Howard University, Washington, DC 20059, USA.
Res Social Adm Pharm. 2005 Mar;1(1):60-76. doi: 10.1016/j.sapharm.2004.12.005.
To apply the Health Belief Model (HBM) in assessing the association of health beliefs, perceived benefits, perceived barriers, alternative therapy use, and sexual risk behaviors in relation to the treatment of human immunodeficiency virus (HIV) in a group of older HIV-infected patients.
A convenience sample of 100 older (50 years and above) HIV-infected patients in 2 Washington, DC, clinics was enrolled. A cross-sectional methodology used structured interviews to investigate the association among antiretroviral adherence, use of alternative therapies, treatment perceptions, and risk behaviors. Student t tests were conducted to examine significant relationships between HBM perceptions and demographic characteristics. Logistic regressions were conducted to assess likelihood of antiretroviral and alternative therapy use.
The majority of the participants were black and had a high school education. Although participants believed that HIV was a severe disease, they did not perceive themselves to be susceptible to early progression to acquired immunodeficiency syndrome. Participants believed that antiretrovirals were beneficial, and they were not particularly burdened by perceived costs of antiretrovirals. The perceived costs (or barriers) of antiretrovirals were inversely associated with CD4 count (r=-0.25, P=.01) and positively associated with viral load (r=0.33, P < .01). Overall 21% of patients in this population indicated use of alternative therapies. Patients who tended to have a higher perception of severity of HIV and a higher perceived burden in using antiretrovirals were more likely to use alternative therapy. There was no difference in HBM perceptions among antiretroviral users and nonusers.
In general, the benefits of taking antiretrovirals were clear to most patients, and the same patients did not view access to antiretrovirals as a significant barrier to treatment. Many patients, although aware of the severity of HIV disease, were not seeking modifications to sexual behavior. Furthermore, the actual medication-taking behavior of these patients resulted in significant impacts to their clinical status. Study results can be applied in the development of specific interventions that are intended to decrease HIV transmission among older adults and to improve medication-taking behavior among those who are already infected with HIV.
应用健康信念模型(HBM)评估一组老年HIV感染患者在人类免疫缺陷病毒(HIV)治疗方面的健康信念、感知益处、感知障碍、替代疗法使用情况及性风险行为之间的关联。
选取华盛顿特区2家诊所的100名年龄在50岁及以上的老年HIV感染患者作为便利样本。采用横断面研究方法,通过结构化访谈调查抗逆转录病毒治疗依从性、替代疗法使用情况、治疗认知及风险行为之间的关联。进行学生t检验以检查HBM认知与人口统计学特征之间的显著关系。进行逻辑回归分析以评估使用抗逆转录病毒药物和替代疗法的可能性。
大多数参与者为黑人,拥有高中学历。尽管参与者认为HIV是一种严重疾病,但他们并不认为自己易早期发展为获得性免疫缺陷综合征。参与者认为抗逆转录病毒药物有益,且他们并未因抗逆转录病毒药物的感知成本而倍感负担。抗逆转录病毒药物的感知成本(或障碍)与CD4细胞计数呈负相关(r = -0.25,P = 0.01),与病毒载量呈正相关(r = 0.33,P < 0.01)。总体而言,该人群中21%的患者表示使用替代疗法。对HIV严重程度认知较高且使用抗逆转录病毒药物时感知负担较高的患者更有可能使用替代疗法。抗逆转录病毒药物使用者和非使用者在HBM认知方面无差异。
总体而言,大多数患者清楚服用抗逆转录病毒药物的益处,且这些患者并不认为获取抗逆转录病毒药物是治疗的重大障碍。许多患者尽管意识到HIV疾病的严重性,但并未寻求改变性行为。此外,这些患者的实际服药行为对其临床状况产生了重大影响。研究结果可应用于制定特定干预措施,旨在减少老年人中的HIV传播,并改善已感染HIV者的服药行为。