Samet J H, Retondo M J, Freedberg K A, Stein M D, Heeren T, Libman H
Section of General Internal Medicine, Boston City Hospital, Boston University School of Medicine, Massachusetts.
Am J Med. 1994 Oct;97(4):347-53. doi: 10.1016/0002-9343(94)90301-8.
To examine the degree of immune dysfunction of human immunodeficiency virus (HIV)-infected patients at the time of presentation and to identify factors associated with early and late initial primary medical care for HIV infection as measured by CD4+ lymphocyte count.
Two hundred fifty-one consecutive outpatients without prior primary care for HIV infection were assessed at a municipal hospital HIV intake clinic (derivation group). Sociodemographic and clinical variables were examined for their association with CD4+ cell count on presentation in bivariate and stepwise linear regression analyses. Variables of interest were examined in 123 similar patients at a second site to assess the generalizability of our findings (validation group).
In the derivation group, 30% of patients presented for initial primary care with CD4+ cell counts less than 200/mm3, 51% had counts from 201/mm3 to 500/mm3, and only 19% had counts greater than 500/mm3. Twenty-seven percent of patients had delayed seeking medical care for longer than 1 year and 12%, for more than 2 years after an initial positive HIV serologic evaluation. Three variables were significant and independent predictors of CD4+ cell count on presentation: Haitian ethnicity (P = 0.05) and HIV-related symptoms (P = 0.005) were associated with lower CD4+ cell counts; and female sex (P = 0.009) was associated with higher CD4+ cell counts. With HIV-related symptoms excluded from the model, a history of cocaine use was also a significant predictor for higher CD4+ cell count (P = 0.02). In the validation group, which included few Haitians, results for female sex and HIV-related symptoms showed a similar association.
Most HIV-infected patients presented for primary care with advanced immune dysfunction. A substantial percentage of patients waited over a year to initiate medical care after testing positive for HIV. Haitian patients presented later for primary HIV care as measured by CD4+ cell count. Women presented with significantly higher CD4+ cell counts than did men. Since few characteristics examined could clearly identify the majority of late-presenting HIV-infected patients, improved general and targeted efforts are needed to link all HIV-infected people with primary medical care before the development of advanced disease.
研究人类免疫缺陷病毒(HIV)感染患者就诊时免疫功能障碍的程度,并确定与HIV感染早期和晚期初次初级医疗护理相关的因素,以CD4+淋巴细胞计数作为衡量指标。
在一家市级医院的HIV接诊诊所对251例此前未接受过HIV感染初级护理的连续门诊患者进行评估(衍生组)。在双变量和逐步线性回归分析中,检查社会人口统计学和临床变量与就诊时CD4+细胞计数的相关性。在第二个地点的123例类似患者中检查感兴趣的变量,以评估我们研究结果的普遍性(验证组)。
在衍生组中,30%的患者初次接受初级护理时CD4+细胞计数低于200/mm3,51%的患者计数在201/mm3至500/mm3之间,只有19%的患者计数高于500/mm3。27%的患者在初次HIV血清学检测呈阳性后延迟就医超过1年,12%的患者延迟超过2年。有三个变量是就诊时CD4+细胞计数的显著且独立预测因素:海地族裔(P = 0.05)和HIV相关症状(P = 0.005)与较低的CD4+细胞计数相关;女性(P = 0.009)与较高的CD4+细胞计数相关。若模型中排除HIV相关症状,可卡因使用史也是CD4+细胞计数较高的显著预测因素(P = 0.02)。在验证组中,海地人较少,女性性别和HIV相关症状的结果显示出类似的相关性。
大多数HIV感染患者就诊时存在晚期免疫功能障碍。相当比例的患者在HIV检测呈阳性后等待一年以上才开始接受医疗护理。以CD4+细胞计数衡量,海地患者较晚接受初次HIV护理。女性的CD4+细胞计数明显高于男性。由于所检查的特征中很少能明确识别出大多数就诊较晚的HIV感染患者,因此需要加强一般和针对性的努力,以便在疾病发展到晚期之前将所有HIV感染者与初级医疗护理联系起来。