Diagnostic Screening Programs

诊断性筛查计划
  • 文章类型: English Abstract
    UNASSIGNED: Cardiovascular diseases have been the leading cause of death in the world for more than 20 years. They are generally unusual in premenopausal women due to the cardiovascular protection of endogenous estrogens, so the cardiovascular risk in these has traditionally been underestimated.
    UNASSIGNED: Establish a protocol for vascular risk screening in perimenopausal women from the community pharmacy.
    UNASSIGNED: Descriptive study from an opportunistic sample in a community pharmacy of women between 45 and 55 years old. Participants were cited at the pharmacy and their cholesterol and blood pressure levels, weight, and height were taken. Information was collected on women\'s general and specific cardiovascular risk factors, medication they were taking and smoking. These data were used to estimate cardiovascular risk using SCORE tables.
    UNASSIGNED: 18 forms were collected, with the average age of the applicants being 49 (SD 3) years old. 38.9% (CI95%: 17.3 a 64.3) had high blood pressure and 44.4% (CI95%: 21.5 a 69.2) had cholesterol levels equal to or higher than 190 mg/ml. 100% had some traditional or specific risk factor for women.
    UNASSIGNED: The usefulness of vascular risk screening in perimenopausal women is confirmed. All this places value on the intervention of the community pharmacist in the detection and management of cardiovascular risk factors.
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  • 文章类型: Journal Article
    骨质疏松未被诊断,特别是在被认为可以防止骨质流失的少数民族和种族中,但通常在骨质疏松性骨折后结局更差。我们旨在通过机会性CT在美国东北部使用非对比CT进行肺癌筛查(LCS)的患者中确定骨质疏松症的患病率。检索了包括种族和族裔在内的人口统计数据。我们使用全自动人工智能算法评估骨小梁和身体成分。将ROI放置在T12椎体以Hounsfield单位(HU)进行衰减测量。使用两个经过验证的阈值来诊断骨质疏松症:高灵敏度阈值(115-165HU)和高特异性阈值(<115HU)。我们进行了描述性统计和方差分析来比较不同性别的差异,种族,种族,和收入阶层根据社区的意思是家庭收入。使用正向逐步回归模型来确定小梁衰减的身体成分预测因子。我们纳入了3708例患者(平均年龄64±7岁,54%的男性)接受LCS,具有可用的人口统计信息和可评估的CT用于小梁衰减分析。使用高灵敏度阈值,骨质疏松症在女性中更为普遍(74%vs.65%的男性,p<0.0001)和白人(72%vs49%非白人,p<0.0001)。然而,骨质疏松症存在于所有种族中(38%是黑人,55%亚洲人,56%的西班牙裔),并影响所有收入阶层(69%,69%,91%处于低位,中等,和高收入阶层,分别)。高内脏/皮下脂肪比,主动脉钙化,和肝脂肪变性与低小梁衰减相关(p<0.01),而肌肉质量与小梁衰减呈正相关(p<0.01)。总之,骨质疏松症在所有种族中都很普遍,接受LCS的患者的收入阶层和两性。使用全自动算法和统一成像协议的机会性CT能够检测骨质疏松症和身体成分,而无需额外的测试或辐射。早期识别传统上认为骨丢失风险较低的患者将允许开始适当的治疗以防止未来的脆性骨折。临床医师。GOVIDENTIFIER:N/A.
    Osteoporosis is underdiagnosed, especially in ethnic and racial minorities who are thought to be protected against bone loss, but often have worse outcomes after an osteoporotic fracture. We aimed to determine the prevalence of osteoporosis by opportunistic CT in patients who underwent lung cancer screening (LCS) using non-contrast CT in the Northeastern United States. Demographics including race and ethnicity were retrieved. We assessed trabecular bone and body composition using a fully-automated artificial intelligence algorithm. ROIs were placed at T12 vertebral body for attenuation measurements in Hounsfield Units (HU). Two validated thresholds were used to diagnose osteoporosis: high-sensitivity threshold (115-165 HU) and high specificity threshold (<115 HU). We performed descriptive statistics and ANOVA to compare differences across sex, race, ethnicity, and income class according to neighborhoods\' mean household incomes. Forward stepwise regression modeling was used to determine body composition predictors of trabecular attenuation. We included 3708 patients (mean age 64 ± 7 years, 54 % males) who underwent LCS, had available demographic information and an evaluable CT for trabecular attenuation analysis. Using the high sensitivity threshold, osteoporosis was more prevalent in females (74 % vs. 65 % in males, p < 0.0001) and Whites (72 % vs 49 % non-Whites, p < 0.0001). However, osteoporosis was present across all races (38 % Black, 55 % Asian, 56 % Hispanic) and affected all income classes (69 %, 69 %, and 91 % in low, medium, and high-income class, respectively). High visceral/subcutaneous fat-ratio, aortic calcification, and hepatic steatosis were associated with low trabecular attenuation (p < 0.01), whereas muscle mass was positively associated with trabecular attenuation (p < 0.01). In conclusion, osteoporosis is prevalent across all races, income classes and both sexes in patients undergoing LCS. Opportunistic CT using a fully-automated algorithm and uniform imaging protocol is able to detect osteoporosis and body composition without additional testing or radiation. Early identification of patients traditionally thought to be at low risk for bone loss will allow for initiating appropriate treatment to prevent future fragility fractures. CLINICALTRIALS.GOV IDENTIFIER: N/A.
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  • 文章类型: Journal Article
    在这项验证研究中,我们比较和对比了显色琼脂培养的性能特征,直接聚合酶链反应(PCR),和肉汤富集,然后进行培养或PCR,以检测耳念珠菌定植。我们发现培养和PCR都提供了优异的性能,与肉汤浓缩提供很少的性能优势,考虑到其成本。
    In this verification study, we compare and contrast the performance characteristics of chromogenic agar culture, direct polymerase chain reaction (PCR), and broth enrichment followed by culture or PCR for the detection of Candida auris colonization. We find that culture and PCR both offer excellent performance, with broth enrichment offering little performance advantage given its cost.
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  • 文章类型: Journal Article
    背景:准确的临床分期对于选择非小细胞肺癌(NSCLC)的最佳肿瘤治疗策略至关重要。虽然脑部MRI,骨闪烁显像和全身PET/CT在检测远处转移中起重要作用,缺乏关于早期NSCLC转移分期指征的证据,尤其是地面草结节(GGNs)。我们的目的是确定在临床T1N0GGN的情况下是否需要检查远处转移。
    方法:这是一项回顾性研究,对临床T1N0期IA非小细胞肺癌接受完全手术R0切除的患者使用影像学检查进行初始分期。
    结果:共有273例cT1N0GGNs(n=183)或cT1N0实体瘤(STs,n=90)被认为是合格的。在最初的常规影像学评估中未检测到远处转移病例。在所有cT1N0M0病例中,在各种模态上有191个偶然发现(在GGN中有128个).在脑部MRI上最常见的是脑白质疏松症,在98/273(35.9%)患者中发现,而12/273(4.4%)患者发现脑梗死。可治疗的肿瘤,包括脑膜瘤和甲状腺,胃,在PET/CT(和/或MRI)上也检测到肾癌和结肠癌.其中,19名患者被诊断出患有可治疗的疾病,包括手术治愈的其他部位癌症。
    结论:广泛分期(MRI,闪烁显像,PET/CT等.)诊断为临床T1N0GGNs的患者不需要进行远处转移,尽管各种成像方式显示存在不定疾病,有可能增加手术风险,导致单独管理,恶化患者的预后,尤其是老年患者。如果临床可行,它可以被认为是补充包括PET/CT在内的全身手术的分期。
    BACKGROUND: Accurate clinical staging is crucial for selection of optimal oncological treatment strategies in non-small cell lung cancer (NSCLC). Although brain MRI, bone scintigraphy and whole-body PET/CT play important roles in detecting distant metastases, there is a lack of evidence regarding the indication for metastatic staging in early NSCLCs, especially ground-grass nodules (GGNs). Our aim was to determine whether checking for distant metastasis is required in cases of clinical T1N0 GGN.
    METHODS: This was a retrospective study of initial staging using imaging tests in patients who had undergone complete surgical R0 resection for clinical T1N0 Stage IA NSCLC.
    RESULTS: A total of 273 patients with cT1N0 GGNs (n = 183) or cT1N0 solid tumors (STs, n = 90) were deemed eligible. No cases of distant metastasis were detected on initial routine imaging evaluations. Among all cT1N0M0 cases, there were 191 incidental findings on various modalities (128 in the GGN). Most frequently detected on brain MRI was cerebral leukoaraiosis, which was found in 98/273 (35.9%) patients, while cerebral infarction was detected in 12/273 (4.4%) patients. Treatable neoplasms, including brain meningioma and thyroid, gastric, renal and colon cancers were also detected on PET/CT (and/or MRI). Among those, 19 patients were diagnosed with a treatable disease, including other-site cancers curable with surgery.
    CONCLUSIONS: Extensive staging (MRI, scintigraphy, PET/CT etc.) for distant metastasis is not required for patients diagnosed with clinical T1N0 GGNs, though various imaging modalities revealed the presence of adventitious diseases with the potential to increase surgical risks, lead to separate management, and worsen patient outcomes, especially in elderly patients. If clinically feasible, it could be considered to complement staging with whole-body procedures including PET/CT.
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  • 文章类型: Journal Article
    背景:在目标人群中进行心血管和癌症筛查可以降低死亡率。每年一次拜访全科医生(GP)与预防性护理的可能性增加有关。这项研究的目的是分析去年访问全科医生对基于性别和家庭收入的预防性服务提供的影响。
    方法:横断面研究使用从2013-2015年欧洲健康访谈调查收集的数据,来自29个欧洲国家的40-74岁的个体。变量包括:社会人口因素(年龄,性别,和家庭收入(HHI)五分之一[HHI1:最低收入,HHI5:更富裕]),生活方式因素,合并症,和预防性护理服务(心脏代谢,流感疫苗接种,和癌症筛查)。描述性统计,双变量分析和多水平模型(1级:公民,第2级:国家)进行。
    结果:包括242,212名受试者,53.7%为女性。接受任何心脏代谢筛查的受试者比例(92.4%)大于癌症筛查(结直肠癌:44.1%,妇科癌症:40.0%)和流感疫苗接种。在过去一年中访问过全科医生的个人更倾向于接受预防性护理服务(心脏代谢筛查:调整后的OR(aOR):7.78,95%CI:7.43-8.15;结直肠筛查aOR:1.87,95%CI:1.80-1.95;乳房X线照相术aOR:1.76,95%CI:1.69-1.83和巴氏涂片检查:aOR:1.89,95%CI在去年参观过全科医生的人中,心脏代谢筛查和癌症筛查比例最高的人群受益于较富裕的人群.无论HHI如何,女性都比男性接受更多的血压测量。无论HHI如何,男性比女性更有可能接受流感疫苗接种。各国之间的流感疫苗接种差异最大,中位数赔率比(MOR)为6.36(65岁以下合并疾病)和4.30(65岁以上合并疾病),随后是MOR为2.26的结直肠癌筛查。
    结论:对预防服务的更高依从性与过去一年中至少访问过全科医生的个体有关。家庭收入较低的去过全科医生的人之间存在明显的差异。各国之间的差异最大的是流感疫苗接种和结直肠癌筛查。
    BACKGROUND: Performing cardiovascular and cancer screenings in target populations can reduce mortality. Visiting a General Practitioner (GP) once a year is related to an increased likelihood of preventive care. The aim of this study was to analyse the influence of visiting a GP in the last year on the delivery of preventive services based on sex and household income.
    METHODS: Cross-sectional study using data collected from the European Health Interview Survey 2013-2015 of individuals aged 40-74 years from 29 European countries. The variables included: sociodemographic factors (age, sex, and household income (HHI) quintiles [HHI 1: lowest income, HHI 5: more affluent]), lifestyle factors, comorbidities, and preventive care services (cardiometabolic, influenza vaccination, and cancer screening). Descriptive statistics, bivariate analyses and multilevel models (level 1: citizen, level 2: country) were performed.
    RESULTS: 242,212 subjects were included, 53.7% were female. The proportion of subjects who received any cardiometabolic screening (92.4%) was greater than cancer screening (colorectal cancer: 44.1%, gynaecologic cancer: 40.0%) and influenza vaccination. Individuals who visited a GP in the last year were more prone to receive preventive care services (cardiometabolic screening: adjusted OR (aOR): 7.78, 95% CI: 7.43-8.15; colorectal screening aOR: 1.87, 95% CI: 1.80-1.95; mammography aOR: 1.76, 95% CI: 1.69-1.83 and Pap smear test: aOR: 1.89, 95% CI:1.85-1.94). Among those who visited a GP in the last year, the highest ratios of cardiometabolic screening and cancer screening benefited those who were more affluent. Women underwent more blood pressure measurements than men regardless of the HHI. Men were more likely to undergo influenza vaccination than women regardless of the HHI. The highest differences between countries were observed for influenza vaccination, with a median odds ratio (MOR) of 6.36 (under 65 years with comorbidities) and 4.30 (over 65 years with comorbidities), followed by colorectal cancer screening with an MOR of 2.26.
    CONCLUSIONS: Greater adherence to preventive services was linked to individuals who had visited a GP at least once in the past year. Disparities were evident among those with lower household incomes who visited a GP. The most significant variability among countries was observed in influenza vaccination and colorectal cancer screening.
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  • 文章类型: Journal Article
    长期以来,无细胞DNA(cfDNA)已被确立为各种临床环境中有用的诊断和预后工具。从传染病到心血管和肿瘤疾病。然而,非肿瘤性疾病可以作为混杂因素,影响血液中cfDNA的脱落量以及肿瘤来源的游离循环核酸选择癌症患者的技术可行性。这里,我们调查了其他病理过程对637例FIT+患者临床分层的潜在影响.单一和多元逻辑回归产生了类似的结果。粗灵敏度为75.9%,调整灵敏度为74.1%,相对风险0.9761(0.8516至1.1188),风险差异0.0181(-0.0835至0.1199)和OR0.9079(0.5264至1.5658)。来自其他cfDNA来源的潜在混杂效应在FIT+患者的临床分层中起关键作用。
    Cell-free DNA (cfDNA) has long been established as a useful diagnostic and prognostic tool in a variety of clinical settings, ranging from infectious to cardiovascular and neoplastic diseases. However, non-neoplastic diseases can act as confounders impacting on the amount of cfDNA shed in bloodstream and on technical feasibility of tumour derived free circulating nucleic acids selecting patients with cancer. Here, we investigated the potential impact of other pathological processes in the clinical stratification of 637 FIT+ patients. A single and multiple logistic regression yielded similar results. Crude sensitivity was 75.9% versus adjusted sensitivity of 74.1%, relative risk 0.9761 (0.8516 to 1.1188), risk difference 0.0181 (-0.0835 to 0.1199) and OR 0.9079 (0.5264 to 1.5658). Potential confounding effect from other source of cfDNA plays a pivotal role in the clinical stratification of FIT+ patients.
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  • 文章类型: Letter
    在这份最新的全国医院门诊医疗调查横断面分析中,我们发现,与2020年相比,2021年的250万次加权急诊科(ED)访视中,与2020年相比,2021年每次ED访视的HIV检测量无显著增长(0.81%至0.86%).这表明ED访视期间的HIV检测并没有随着大流行最低点后访视量的反弹而增加。
    In this updated cross-sectional analysis of the National Hospital Ambulatory Medical Care Survey, we found that among the 2.5 million more weighted emergency department (ED) visits in 2021 compared with 2020, there was an insignificant increase in HIV testing per ED visit in 2021 compared with 2020 (0.81% to 0.86%). This suggests HIV testing during ED visits did not increase in line with rebounding visit volumes after the pandemic nadir.
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  • 文章类型: Randomized Controlled Trial
    背景:HIV自我检测(HIVST)可能造成伤害的可能性是阻碍其广泛实施的一个问题。本文的目的是了解HIVST与SELPHI(HIV自检公共卫生干预)中危害之间的关系,迄今为止在高收入国家最大的HIVST随机试验.
    方法:10111名与男性发生性关系的男性和跨性别男性(MSM)在线招募(地理位置社交/性网络应用,社交媒体),16岁以上,报告以前的肛交和居住在英格兰或威尔士的首次随机60/40到基线HIVST(基线测试,BT)或不(无基线测试,nBT)(随机化A)。BT参与者报告阴性基线测试,3个月时的性风险和对进一步HIVST的兴趣被随机分配到三个月的HIVST(重复测试,RT)或不(无重复测试,nRT)(随机化B)。所有人都收到了一项出口调查,收集有关危害(对人际关系,幸福,错误的结果或被压力/说服进行测试)。对9名报告伤害的参与者进行了深入访谈,了解他们在一项探索性子研究中的经历;对定性数据进行了叙述性分析。
    结果:基线:主要是顺式MSM,90%白色,88%的同性恋47%的大学教育和7%的当前/以前的暴露前预防(PrEP)用户。最终调查回复率为:nBT=26%(1056/4062),BT=45%(1674/3741),nRT=41%(471/1147),RT=50%(581/1161)。伤害很少见,在出口调查中报告了4%(n=138/3691),在其他研究调查中发现了另外两个假阳性结果。1%的人报告对BT的人际关系和福祉造成伤害,nRT和RT相结合。在所有的武器组合中,有1%(n=54/3678)被压力或被说服进行检测,0.7%(n=34/4665)被报告假阳性结果.定性分析揭示了试剂盒本身的危害(技术危害),干预(干预危害)或来自参与者的社会背景(社会紧急危害)。干预和社会紧急危害并没有降低HIVST的可接受性,而技术危害确实如此。
    结论:HIVST的危害很少见,但在HIVST扩大规模时,应考虑将遭受危害的个体与社会心理支持联系起来的策略。
    背景:ISRCTN20312003。
    The potential of HIV self-testing (HIVST) to cause harm is a concern hindering widespread implementation. The aim of this paper is to understand the relationship between HIVST and harm in SELPHI (An HIV Self-testing Public Health Intervention), the largest randomised trial of HIVST in a high-income country to date.
    10 111 cis and trans men who have sex with men (MSM) recruited online (geolocation social/sexual networking apps, social media), aged 16+, reporting previous anal intercourse and resident in England or Wales were first randomised 60/40 to baseline HIVST (baseline testing, BT) or not (no baseline testing, nBT) (randomisation A). BT participants reporting negative baseline test, sexual risk at 3 months and interest in further HIVST were randomised to three-monthly HIVST (repeat testing, RT) or not (no repeat testing, nRT) (randomisation B). All received an exit survey collecting data on harms (to relationships, well-being, false results or being pressured/persuaded to test). Nine participants reporting harm were interviewed in-depth about their experiences in an exploratory substudy; qualitative data were analysed narratively.
    Baseline: predominantly cis MSM, 90% white, 88% gay, 47% university educated and 7% current/former pre-exposure prophylaxis (PrEP) users. Final survey response rate was: nBT=26% (1056/4062), BT=45% (1674/3741), nRT=41% (471/1147), RT=50% (581/1161).Harms were rare and reported by 4% (n=138/3691) in exit surveys, with an additional two false positive results captured in other study surveys. 1% reported harm to relationships and to well-being in BT, nRT and RT combined. In all arms combined, being pressured or persuaded to test was reported by 1% (n=54/3678) and false positive results in 0.7% (n=34/4665).Qualitative analysis revealed harms arose from the kit itself (technological harms), the intervention (intervention harms) or from the social context of the participant (socially emergent harms). Intervention and socially emergent harms did not reduce HIVST acceptability, whereas technological harms did.
    HIVST harms were rare but strategies to link individuals experiencing harms with psychosocial support should be considered for HIVST scale-up.
    ISRCTN20312003.
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  • 文章类型: Systematic Review
    目的:高危型人乳头瘤病毒(hrHPV)检测可作为宫颈癌一线筛查方法。测试涉及临床医生收集或自我收集的宫颈阴道拭子。这项研究检查了主要HPV检测收集方法之间的一致性。方法:OvidMEDLINE,OvidEmbase,和Cochrane搜索了2022年12月31日前发表的关于自我收集和临床医生收集的主要HPV检测的相关研究。包括对平均风险患者进行初次HPV检测的英语研究。在筛查场所而不是阴道镜诊所进行的研究,使用标准设备进行HPV收集,并包括了直接比较的收集方法。结果是配对样本之间的一致性和卡帕,以及自我收集和临床医生收集的样本中HPV的检出率。结果:共筛选2381项研究,其中228人被纳入全文评估。36项研究,包括接受筛查的23328人,符合纳入标准。自我收集的HPV检出率为4.7%至63%,临床医生收集的HPV检出率为3.7%至62%。一致性从78.2%到96.9%不等,和kappa在36项研究中的26项研究中达成了实质性一致,在36项研究中的7项研究中达成了中度一致。结论:这项研究直接比较了临床医生收集和自我收集的原发性HPV筛查率。研究是在初级保健环境中广泛可重复的方法中进行的。原发性HPV自我采集是一种可靠、准确的宫颈癌筛查方法。
    Objective: Primary high risk human papilloma virus (hrHPV) testing is recommended as first-line screening for cervical cancer. Testing involves either a clinician-collected or a self-collected cervicovaginal swab. This study examines concordance between methods of collection of primary HPV testing. Methods: Ovid MEDLINE, Ovid Embase, and Cochrane were searched for relevant studies on self-collected and clinician-collected primary HPV testing published before December 31, 2022. English-language studies for primary HPV testing of average-risk patients were included. Studies conducted in screening settings rather than colposcopy clinics, that used standard devices for HPV collection, and that directly compared methods of collection were included. Outcomes were concordance and kappa between paired samples, and rate of HPV detection in self-collected and clinician-collected samples. Results: A total of 2381 studies were screened, of which 228 were included for full-text evaluation. Thirty-six studies, including 23,328 individuals screened, met the inclusion criteria. The rate of HPV detection ranged from 4.7% to 63% for self-collection and from 3.7% to 62% for clinician-collection. The concordance ranged from 78.2% to 96.9%, and kappa had substantial agreement for 26 of the 36 studies and moderate agreement for 7 of the 36 studies. Conclusions: This study directly compares clinician-collected and self-collected primary HPV screening rates. Studies were conducted in methods which are widely reproducible in the primary care setting. Primary HPV self-collection is a reliable and accurate method for cervical cancer screening.
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  • 文章类型: Journal Article
    这项研究在血清阳性率研究中评估了雅培建筑师SARS-CoV-2IgG和EUROIMMUNSARS-COV-2ELISA之间的不一致。
    从2020年6月10日至8月15日,通过雅培建筑师SARS-CoV-2IgG(雅培)和EUROIMMUNSARS-CoV-2ELISA(EI)测定法对8,246个标本进行了双重评估。计算性别分层的phi相关系数以评估Abbott和EI测定的定量结果之间的一致性。实施了多变量混合效应逻辑模型,以评估低患病率样本中测定阳性与性别之间的关联,同时控制年龄,种族,种族,糖尿病,心血管疾病,高血压,免疫抑制治疗,和自身免疫性疾病。
    男性的EI阳性是女性的2.1倍;然而,性别间雅培阳性无显著差异.在制造商建议的阈值下,女性(Φ=0.47)的Abbott和EI定性结果的phi相关系数比男性(Φ=0.35)大34%。对于低患病率亚组,未调整和完全调整的模型在性别和阳性EI结果之间产生了强关联(未调整的OR:2.24,CI:1.63,3.11,调整的OR:3.40,CI:2.15,5.39)。在低患病率亚组中,雅培阳性的类似分析未发现与所检查的任何协变量相关。在整个血清阳性率研究中,在Abbott和EI之间观察到显着的定量和定性不一致。我们的结果表明EI测定存在与性别相关的特异性限制。由于这些发现可能扩展到用于SARS-CoV-2血清阳性率调查的其他抗S测定,需要进一步调查以评估这些发现的普遍性.
    This study evaluated the discordance between Abbott Architect SARS-CoV-2 IgG and EUROIMMUN SARS-COV-2 ELISA in a seroprevalence study.
    From June 10 to August 15, 2020, 8,246 specimens were dually evaluated by the Abbott Architect SARS-CoV-2 IgG (Abbott) and the EUROIMMUN SARS-CoV-2 ELISA (EI) assays. Sex-stratified phi correlation coefficients were calculated to evaluate the concordance between Abbott and EI assay\'s quantitative results. Multivariable mixed-effect logistic models were implemented to evaluate the association between assay positivity and sex on a low prevalence sample while controlling for age, race, ethnicity, diabetes, cardiovascular disease, hypertension, immunosuppressive therapy, and autoimmune disease.
    EI positivity among males was 2.1-fold that of females; however, no significant differences in Abbott positivity were observed between sexes. At the manufacturer-recommended threshold, the phi correlation coefficient for the Abbott and EI qualitative results among females (Φ = 0.47) was 34% greater than males (Φ = 0.35). The unadjusted and fully adjusted models yielded a strong association between sex and positive EI result for the low prevalence subgroup (unadjusted OR: 2.24, CI: 1.63, 3.11, adjusted OR: 3.40, CI: 2.15, 5.39). A similar analysis of Abbott positivity in the low prevalence subgroup did not find an association with any of the covariates examined. Significant quantitative and qualitative discordance was observed between Abbott and EI throughout the seroprevalence study. Our results suggest the presence of sex-associated specificity limitations with the EI assay. As these findings may extend to other anti-S assays utilized for SARS-CoV-2 seroprevalence investigations, further investigation is needed to evaluate the generalizability of these findings.
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