慢性乙型肝炎低病毒血症患者HBV RNA的表达及临床意义

陈娅; 何毅怀; 陈应华; 罗亚文

doi:10.12449/JCH260311

慢性乙型肝炎低病毒血症患者HBV RNA的表达及临床意义

DOI: 10.12449/JCH260311

遵义医科大学附属医院感染科，贵州遵义 563000

基金项目:

贵州省科学技术基金项目 (QKHJC-zk［2025］MS384)

利益冲突声明：本文不存在任何利益冲突。

作者贡献声明：陈娅负责提出研究思路，设计研究方案，起草论文；何毅怀负责收集与整理数据，并进行统计学分析；陈应华负责整理数据并绘制统计图；罗亚文负责拟定写作思路，指导撰写文章并最后定稿。

详细信息

通信作者:
罗亚文， luoyw719@163.com （ORCID： 0000-0002-8845-1265）

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出版历程
- 收稿日期: 2025-09-23
- 录用日期: 2025-12-11
- 出版日期: 2026-03-25

Expression and clinical significance of HBV RNA in chronic hepatitis B patients with low-level viremia

Department of Infectious Diseases，Affiliated Hospital of Zunyi Medical University，Zunyi，Guizhou 563000，China

Research funding:

Science and Technology Research Foundation of Guizhou Province (QKHJC-zk［2025］MS384)

More Information

Corresponding author: LUO Yawen， luoyw719@163.com （ORCID： 0000-0002-8845-1265）

摘要

摘要: 目的探讨低病毒血症（LLV）患者血清乙型肝炎病毒（HBV）RNA的表达特征，并评估其对LLV的辅助诊断价值。方法选取2023年12月—2025年5月在遵义医科大学附属医院就诊的402例慢性乙型肝炎（CHB）患者，根据不同病毒载量分为完全病毒学应答（CVR）组（n=190，HBV DNA＜20 IU/mL）和LLV组（n=212，20 IU/mL≤HBV DNA＜2 000 IU/mL）。对两组患者年龄、性别、疾病类型、血清HBV RNA、乙型肝炎病毒e抗原（HBeAg）、丙氨酸氨基转移酶（ALT）、天冬氨酸氨基转移酶（AST）及总胆红素（TBil）等指标进行分析，同时根据LLV组中HBeAg状态分为HBeAg阴性组（n=140）和HBeAg阳性组（n=72）。计数资料两组间比较采用χ²检验；计量资料两组间比较采用Mann-Whitney U检验。通过多因素Logistic回归分析CHB患者发生LLV的影响因素。运用Spearman秩相关分析LLV组中HBV RNA与HBV DNA、ALT、AST及TBil的相关性。应用受试者操作特征（ROC）曲线评估HBV RNA对LLV的诊断效能。结果与CVR组相比，LLV组患者的血清HBV RNA水平更高［3（1～5） log₁₀copies/mL vs 2（1～3） log₁₀copies/mL，Z=-2.346，P=0.019］，乙型肝炎肝硬化（31.13% vs 22.11%，χ²=4.155，P=0.042）及肝细胞癌（9.91% vs 4.74%，χ²=3.876，P=0.049）患者占比均较高。多因素Logistic回归分析显示，HBV RNA是CHB患者发生LLV的独立危险因素（比值比=1.163，95%置信区间：1.058～1.278，P=0.002）。在LLV患者中，HBeAg阳性者HBV RNA水平显著高于HBeAg阴性者［6（4～7） log₁₀copies/mL vs 2（1～3） log₁₀copies/mL，Z=-9.962，P<0.001］。相关性分析结果显示，LLV患者HBV RNA水平与HBV DNA、ALT、AST及TBil均无显著相关性（P值均＞0.05）。ROC曲线分析表明，HBV RNA诊断LLV的曲线下面积为0.567（P=0.021），最佳截断值为4.5 log₁₀ copies/mL，灵敏度为30.7%，特异度为85.8%。结论血清HBV RNA水平是CHB患者发生LLV的独立危险因素，尤其在HBeAg阳性患者中表达显著升高，可作为临床风险评估的潜在生物学标志物。
- 慢性乙型肝炎 /
- 低病毒血症 /
- RNA，病毒 /
- 诊断
Abstract: Objective To investigate the expression characteristics of serum HBV RNA in patients with low-level viremia （LLV） and its value in the diagnosis of LLV. Methods A total of 402 chronic hepatitis B （CHB） patients who attended Affiliated Hospital of Zunyi Medical University from December 2023 to May 2025 were enrolled， and according to their viral load， they were divided into complete virologic response （CVR） group （190 patients with HBV DNA <20 IU/mL） and LLV group （212 patients with an HBV DNA level of ≥20 IU/mL and <2 000 IU/mL）. The two groups were analyzed in terms of age， sex， disease type， serum HBV RNA， HBeAg， alanine aminotransferase （ALT）， aspartate aminotransferase （AST）， and total bilirubin （TBil）， and according to HBeAg status， the patients in the LLV group were further divided into HBeAg-negative group with 140 patients and HBeAg-positive group with 72 patients. The chi-square test was used for comparison of categorical data between two groups， and the Mann-Whitney U test was used for comparison of continuous data between two groups. A multivariate Logistic regression analysis was used to investigate the influencing factors for LLV in CHB patients， and a Spearman’s rank correlation analysis was used to analyze the correlation of HBV RNA with HBV DNA， ALT， AST， and TBil in the LLV group. The receiver operating characteristic （ROC） curve was plotted to evaluate the efficacy of HBV RNA in the diagnosis of LLV. Results Compared with the CVR group， the LLV group had a significantly higher serum level of HBV RNA ［3 （1　—　5） log₁₀ copies/mL vs 2 （1　—　3） log₁₀ copies/mL， Z=-2.346， P=0.019］ and a significantly higher proportion of patients with hepatitis B cirrhosis （31.13% vs 22.11%， χ²=4.155， P=0.042） or hepatocellular carcinoma （9.91% vs 4.74%， χ²=3.876， P=0.049）. The multivariate Logistic regression analysis showed that HBV RNA （odds ratio=1.163， 95% confidence interval： 1.058　—　1.278， P=0.002） was an independent risk factor for the onset of LLV in CHB patients. Among the patients with LLV， HBeAg-positive patients had a significantly higher level of HBV RNA than HBeAg-negative patients ［6 （4　—　7） log₁₀ copies/mL vs 2 （1　—　3） log₁₀ copies/mL， Z=-9.962， P<0.001］. The correlation analysis showed that HBV RNA level had no significant correlation with HBV DNA， ALT， AST， or TBil in the patients with LLV （all P>0.05）. The ROC curve analysis showed that HBV RNA had an AUC of 0.567 for the diagnosis of LLV （P=0.021）， with an optimal cut-off value of 4.5 log₁₀ copies/mL， a sensitivity of 30.7%， and a specificity of 85.8%. Conclusion Serum HBV RNA level is an independent risk factor for the development of LLV in CHB patients， and there is a significant increase in the expression of HBV RNA in HBeAg-positive patients. Therefore， it may serve as a potential biomarker for clinical risk assessment.
- Hepatitis B， Chronic /
- Low-Level Viremia /
- RNA， Viral /
- Diagnosis

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注： HBV，乙型肝炎病毒；LLV，低病毒血症；ROC，受试者操作特征。

图 1 HBV RNA诊断LLV的ROC曲线

Figure 1. ROC curve of HBV RNA for diagnosing LLV

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表 1 CVR组和LLV组患者的基线特征及临床指标比较

Table 1. Comparison of baseline characteristics and clinical indicators between CVR and LLV groups

指标	CVR组（n=190）	LLV组（n=212）	统计值	P值
年龄（岁）	42.5（35.0～50.0）	40.0（31.0～50.7）	Z=-1.628	0.104
≥60岁［例（%）］	12（6.32）	13（6.13）	χ² =0.006	0.939
性别［例（%）］			χ² =0.273	0.601
男	116（61.05）	124（58.49）
女	74（38.95）	88（41.51）
乙型肝炎肝硬化［例（%）］	42（22.11）	66（31.13）	χ² =4.155	0.042
乙型肝炎相关肝细胞癌［例（%）］	9（4.74）	21（9.91）	χ² =3.876	0.049
HBV RNA（log₁₀copies/mL）	2（1～3）	3（1～5）	Z=-2.346	0.019
HBeAg阳性［例（%）］	50（26.32）	72（33.96）	χ² =2.772	0.096
ALT（U/L）	29.00（21.00～40.00）	31.00（20.00～46.00）	Z=-1.034	0.301
AST（U/L）	29.00（24.00～35.00）	30.00（24.00～40.00）	Z=-1.914	0.056
TBil（μmol/L）	14.45（11.17～18.85）	14.30（10.63～19.50）	Z=-0.219	0.827
注：CVR，完全病毒学应答；LLV，低病毒血症；HBV，乙型肝炎病毒；HBeAg，乙型肝炎病毒e抗原；ALT，丙氨酸氨基转移酶；AST，天冬氨酸氨基转移酶；TBil，总胆红素。

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表 2 CVR组和LLV组患者抗病毒情况

Table 2. Comparison of antiviral regimens between patients in the CVR and LLV groups

指标	CVR组（n=190）	LLV组（n=212）
抗病毒药物［例（%）］
ETV	80（42.11）	98（46.23）
TDF	19（10.00）	46（21.70）
TAF	71（37.37）	44（20.75）
TMF	20（10.53）	1（0.47）
联合用药	0（0.00）	23（10.85）
抗病毒治疗时间［例（%）］
≥48周～96周	—	145（68.40）
≥96周～144周	—	51（24.06）
≥144周	—	16（7.55）
注：CVR，完全病毒学应答；LLV，低病毒血症；ETV，恩替卡韦；TDF，富马酸替诺福韦二吡呋酯；TAF，富马酸丙酚替诺福韦；TMF，艾米替诺福韦；—表示未记录。

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表 3 CHB患者发生LLV的多因素Logistic回归分析

Table 3. Multivariate Logistic analysis of factors associated with LLV occurrence in chronic hepatitis B patients

指标	β值	SE	Wald	OR（95%CI）	P值
肝硬化（无=0，有=1）	0.372	0.260	2.042	1.451（0.871～2.417）	0.153
肝细胞癌（无=0，有=1）	0.505	0.465	1.179	1.657（0.666～4.120）	0.278
HBV RNA（log₁₀copies/mL）	1.151	0.048	9.721	1.163（1.058～1.278）	0.002
注：CHB，慢性乙型肝炎；LLV，低病毒血症；HBV，乙型肝炎病毒；SE，标准误；OR，比值比；95%CI，95%置信区间。

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表 4 HBeAg阴性组和HBeAg阳性组患者的指标比较

Table 4. Comparison of indicators between patients in the HBeAg-negative group and the HBeAg-positive group

指标	HBeAg阴性组（n=140）	HBeAg阳性组（n=72）	统计值	P值
乙型肝炎肝硬化［例（%）］	48（34.29）	18（25.00）	χ² =1.912	0.167
乙型肝炎相关肝细胞癌［例（%）］	16（11.43）	5（6.94）	χ² =1.071	0.301
HBV RNA（log₁₀copies/mL）	2（1～3）	6（4～7）	Z=-9.962	<0.001
HBV DNA（log₁₀IU/mL）	2（1～2）	2（1～2）	Z=-0.732	0.464
ALT（U/L）	31.40（19.25～44.75）	31.00（22.00～48.00）	Z=-0.900	0.368
AST（U/L）	28.50（24.00～40.75）	30.00（25.00～40.00）	Z=-0.124	0.901
TBil（μmol/L）	14.60（11.00～20.13）	13.70（9.75～18.88）	Z=-1.202	0.229
注：HBeAg，乙型肝炎病毒e抗原；HBV，乙型肝炎病毒；ALT，丙氨酸氨基转移酶；AST，天冬氨酸氨基转移酶；TBil，总胆红素。

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