Epidemiological and Clinical Profile of Newly Diagnosed HIV/AIDS Patients: A Retrospective Analysis of Changing Trends Over 16 Years.

OBJECTIVE: To evaluate the epidemiological profile and clinical findings of newly diagnosed HIV-infected patients in terms of changing trends over 16 years. METHODS: A total of 748 patients (mean ± SD age: 34 ± 11.6 years, 88.9% were males) newly diagnosed with HIV/AIDS at a tertiary care hospital located in Istanbul province between 2002 and 2017 were included in this retrospective study. Data on sociodemographic characteristics, potential routes of transmission, the reason for HIV testing, time from diagnosis to treatment onset, and the HIV RNA values and CD4+ T cell count (at diagnosis and treatment onset) were recorded in each patient and compared between the diagnoses made within the 2002-2009 (n = 141) vs. 2010-2017 (n = 607) periods. RESULTS: When compared to HIV diagnoses within the 2002-2009 period, the diagnoses made within the 2010-2017 period were associated with a significantly higher percentage of males (78.7 vs. 91.3%, p < 0.001), 18-29 years age group (23.6% vs. 35.5%, p = 0.029), singles (34.0 vs. 49.6%, p = 0.004), university graduates (9.9 vs. 23.4%, p < 0.001) and students (0.7 vs. 8.2%, p < 0.001) along with an increased likelihood of voluntary testing (6.4 vs. 15.2%, p = 0.048) and a lower percentage of heterosexual individuals (63.8 vs. 47.0%, p < 0.001). Sexual contact (88.0%) was the leading transmission route, and the presence of complaints (44.3%) was the leading reason for HIV testing. Overall, the time from diagnosis to treatment onset was a median 1 month (range, 1 to 97 months), and the median HIV RNA level at the time of diagnosis was 208065 copies/mL with no significant difference between study periods. The diagnoses within the 2010-2017 vs. 2002-2009 period were associated with significantly higher median (min-max) CD4+ T cell counts (378(0-2522) vs. 319(4-1270) cells/mm3, p < 0.001) and a lower percentage of patients with CD4+ T cell count < 200 cells/mm3 (22.1 vs. 39.0%, p = 0.002) at the time of diagnosis. CONCLUSION: In conclusion, our findings on the epidemiological profile and clinical characteristics of newly diagnosed HIV patients over 16 years (2002-2017) in a tertiary care center in Turkey revealed a considerable increase in the number of new diagnoses, an improved earlier diagnosis and a change in epidemiologic profile over the years with increased likelihood of disease to be more commonly diagnosed among males, 18-29 years age group and MSM.

Hepatitis B virus prevalence, immunization and immune response in people living with HIV/AIDS in Istanbul, Turkey: a 21-year data analysis.

Objective: We aimed to determine Hepatitis B virus (HBV) prevalence, immune status, and the prevalence of antibody response in people living with HIV/AIDS (PLWHA) in Istanbul, Turkey. Methods: The study includes PLWHA aged 18 years and older who were followed-up for at least 6 months from 1997 to 2018. Results: Of the 653 patients with PLWHA, 99 (15.2%) were both antiHBc-IgG and antiHBs positive, 120 (18.3%) were antiHBc-IgG positive/antiHBs negative. HBsAg was positive in 40 (6.1%) patients. HBsAg positive coinfection (≤40 years 4.6% vs. >40 years 21.7%, p<0.001) and antiHBc-IgG positivity/antiHBs negativity (≤40 years 14.0% vs. >40 years 26.5, p<0.001) were higher in PLWHA older than 40 years. The prevalence of HIV/HBV coinfection reached a peak level of 22.2% in 2004, and it decreased to 3.3% in 2018. The prevalence of immunization before HIV diagnosis was low (15.6%). The prevalence of antibody response (anti-HBs>10 IU/L) after immunization for HBV was 50%. A higher protective response was associated with CD4+≥350 cell/mm3 (59.3%, p=0.014). Conclusion: HBV coexistence in PLWHA remains an imperatively important problem. The most conclusive methods in solving this problem are to prevent transmission by immunization and control measures. Also, HBV screening should in no manner be neglected in PLWHA.

Predictors for tuberculosis co-infection in people living with HIV/AIDs.

BACKGROUND/AIM: Tuberculosis (TB) is one of the most common chronic infectious conditions causing mortality and severe outcomes, particularly in people living with HIV/AIDS (PLWHA). In this study, we aimed to determine the prevalence and predictors of TB among PLWHA. MATERIALS AND METHODS: We conducted a retrospective and single-center study of adults (≥18 years) PLWHA registered at our tertiary teaching and research hospital between 2000 and 2016. RESULTS: A total of 711 PLWHA were included. Of whom, 633 (89.0%) were male. Mean age was 36.53 ±11.55 years (range, 17-79). Thirty-eight (5.3%) patients were diagnosed with active TB. TB development was associated with low CD4+ lymphocyte count (p<0.001), high viral load (p=0.040) and alcohol consumption (p=0.004) but no association with age (p=0.392), gender (p=0.928) and duration since anti-retroviral therapy initiation (p=0.788) was found. Also, a receiver operating characteristic analysis showed that the area under the curves of CD4+ lymphocyte count as a predictor for TB development in PLWHA was 0.717 (p<0.001). CONCLUSION: There are still clinical challenges to predict TB diagnosis. However, CD4+ lymphocyte count and viral load may be considered as valuable predictors for TB development. Also, community strategies to reduce harmful effect of alcohol use should be developed.

Predictors of Intensive Care Unit Admission or Mortality in Patients with Coronavirus Disease 2019 Pneumonia in Istanbul, Turkey.

We aimed to determine the predictors of intensive care unit (ICU) admission or death in patients with coronavirus disease 2019 (COVID-19) pneumonia. This retrospective, single-center study included patients aged ≥18 years who were diagnosed with COVID-19 pneumonia (laboratory and radiologically confirmed) between March 9 and April 8, 2020. The composite endpoint was ICU admission or in-hospital mortality. Univariate and multivariate logistic regression analyses were performed to evaluate the factors associated with the composite endpoint. A total of 336 patients with COVID-19 pneumonia were evaluated. The median age was 54 years (interquartile range: 21), and 187 (55.7%) were men. Fifty-one (15.2%) patients were admitted to the ICU. In-hospital mortality occurred in 33 patients (9.8%). In the univariate analysis, 17 parameters were associated with the composite endpoint, and procalcitonin had the highest odds ratio (odds ratio [OR] = 36.568, confidence interval [CI] = 5.145-259.915). Our results revealed that body temperature (OR = 1.489, CI = 1.023-2.167, P = 0.037), peripheral capillary oxygen saturation (SpO2) (OR = 0.835, CI = 0.773-0.901, P < 0.001), and consolidation (> 25%) on chest computed tomography (OR = 3.170, CI = 1.218-8.252, P = 0.018) at admission were independent predictors. As a result, increased body temperature, decreased SpO2, a high level of procalcitonin, and degree of consolidation on chest computed tomography may predict a poor prognosis and have utility in the management of patients.

Comparison of clinical, laboratory and radiological features in confirmed and unconfirmed COVID-19 patients.

Background: We aimed to compare the clinical, laboratory and radiological findings of confirmed COVID-19 and unconfirmed patients. Methods: This was a single-center, retrospective study. Results: Overall, 620 patients (338 confirmed COVID-19 and 282 unconfirmed) were included. Confirmed COVID-19 patients had higher percentages of close contact with a confirmed or probable case. In univariate analysis, the presence of myalgia and dyspnea, decreased leukocyte, neutrophil and platelet counts were best predictors for SARS-CoV-2 RT-PCR positivity. Multivariate analyses revealed that only platelet count was an independent predictor for SARS-CoV-2 RT-PCR positivity. Conclusion: Routine complete blood count may be helpful for distinguishing COVID-19 from other respiratory illnesses at an early stage, while PCR testing is unique for the diagnosis of COVID-19.