Article(id=1202979642543141567, tenantId=1146029695717560320, journalId=1189873630562394117, issueId=1202979639087030850, articleNumber=null, orderNo=null, doi=10.11855/j.issn.0577-7402.0095.2022.1209, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1641916800000, receivedDateStr=2022-01-12, revisedDate=null, revisedDateStr=null, acceptedDate=1642867200000, acceptedDateStr=2022-01-23, onlineDate=1764742297062, onlineDateStr=2025-12-03, pubDate=1690473600000, pubDateStr=2023-07-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764742297062, onlineIssueDateStr=2025-12-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764742297062, creator=13701087609, updateTime=1764742297062, updator=13701087609, issue=Issue{id=1202979639087030850, tenantId=1146029695717560320, journalId=1189873630562394117, year='2023', volume='48', issue='7', pageStart='749', pageEnd='870', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1764742296239, creator=13701087609, updateTime=1764742346610, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1202979850442203282, tenantId=1146029695717560320, journalId=1189873630562394117, issueId=1202979639087030850, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1202979850442203283, tenantId=1146029695717560320, journalId=1189873630562394117, issueId=1202979639087030850, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=797, endPage=801, ext={EN=ArticleExt(id=1202979643453305575, articleId=1202979642543141567, tenantId=1146029695717560320, journalId=1189873630562394117, language=EN, title=Clinical effect analysis of NIPT prenatal screening in Beijing, columnId=1190310109000602400, journalTitle=Medical Journal of Chinese People’s Liberation Army, columnName=Clinical Research, runingTitle=null, highlight=null, articleAbstract=
Objective To evaluate the clinical effect of non-invasive prenatal testing (NIPT) by analyzing the efficiency of fetal chromosomal aneuploidy screening in Beijing. Methods The clinical data of 133 899 pregnant women, who underwent NIPT in eight prenatal diagnosis institutions of Beijing from January 2019 to December 2020, were collected and retrospectively analyzed. The test indications, results and prenatal diagnosis results were recorded. The positive rate of all pregnant women was calculated according to the test indications; According to the test results, it can be divided into trisomy 21 syndrome, trisomy 18 syndrome, trisomy 13 syndrome, sex chromosome abnormality, and other chromosome abnormalities. The prenatal diagnosis rate, positive rate, positive predictive value (PPV), sensitivity and specificity were calculated. Results Among the NIPT screening indicators, the detection rate of elderly pregnant women was the highest, accounting for 34.0% (45 509/133 899), followed by voluntary requirements, accounting for 32.7% (43 860/133 899). There were 1647 cases with high risk of NIPT, the positive rate was 1.2% (1647/133 899), and the positive rate of NT thickening and ultrasound structure abnormal were the highest in pregnant women. One thousand three hundred and forty-eight cases received prenatal diagnosis. The highest prenatal diagnostic rate was trisomy 18 reached to 91.5% (130/142), the lowest was the rate of sex chromosome abnormality reached to 76.4% (488/639). The overall prenatal diagnostic rate was 81.8% (1348/1647). The positive rates of trisomy 21, trisomy 18, trisomy 13, sex chromosome abnormality and other chromosomes abnormality were 0.2% (318/133 899), 0.1% (142/133 899), 0.1% (77/133 899), 0.5%(639/133 899) and 0.4% (471/133 899), respectively. The positive predictive values were 71.1% (226/318), 38.0% (54/142), 18.2%(14/77), 31.3% (200/639) and 17.8% (84/471), respectively. The sensitivity of trisomy 21, trisomy 18 and trisomy 13 was 98.7%, 96.4% and 100.0%, and all the specificity of was 99.9%. Conclusions The NIPT had high sensitivity and specificity but also still had the limitations of false positive and false negative. Therefore, prenatal diagnosis should be carried out for NIPT high-risk pregnant women, and it is important to strengthen the genetic counseling before and after testing.
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目的 分析北京市孕妇外周血胎儿游离DNA无创产前检测(NIPT)对胎儿染色体非整倍体筛查的效率,并评价NIPT在产前筛查中的临床效果。方法 收集2019年1月-2020年12月在北京市8家产前诊断机构行NIPT产前筛查的133 899例孕妇的临床资料进行回顾性分析,记录检测指征、检测结果和产前诊断结果。所有孕妇按照检测指征计算阳性率;按照检测结果分为21-三体综合征、18-三体综合征、13-三体综合征、性染色体异常、其他染色体异常,计算产前诊断率、阳性率、阳性预测值、敏感度和特异度。结果 NIPT筛查指征中高龄孕产妇检测占比最高,达34.0%(45 509/133 899),其次为自愿要求,占32.7%(43 860/133 899)。NIPT高风险1647例,阳性率为1.2%(1647/133 899),其中胎儿颈后透明层厚度(NT)增厚和超声结构异常孕妇的阳性率最高。NIPT高风险孕妇中1348例进行了产前诊断,18-三体综合征高风险的产前诊断率最高,为91.5%(130/142),最低的是性染色体异常率,为76.4%(488/639),总体产前诊断率为81.8%(1348/1647)。21-三体综合征、18-三体综合征、13-三体综合征、性染色体异常和其他染色体异常的阳性率分别为0.2%(318/133 899)、0.1%(142/133 899)、0.1%(77/133 899)、0.5%(639/133 899)和0.4%(471/133 899),阳性预测值分别为71.1%(226/318)、38.0%(54/142)、18.2%(14/77)、31.3%(200/639)和17.8%(84/471)。21-三体综合征、18-三体综合征及13-三体综合征的筛查敏感度分别为98.7%、96.4%和100.0%,特异度均为99.9%。结论 NIPT的筛查敏感度和特异度较高,但仍存在假阳性和假阴性的可能。NIPT高风险孕妇应行产前诊断,加强检测前后的遗传咨询至关重要。
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张彦春,医学博士,副主任医师,主要从事产前筛查与产前诊断方面的研究
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Distribution of screening indicators and positive abnormal results of NIPT screening in Beijing from 2019 to 2020
, figureFileSmall=null, figureFileBig=null, tableContent=
| 筛查指征 | 检测人数 | 构成比(%) | 21-三体综合征 | 18-三体综合征 | 13-三体综合征 | 性染色体异常 | 其他染色体异常 | 合计 |
|---|
| 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) |
|---|
| 高龄妊娠 | 45 509 | 34.0 | 156 | 0.3 | 66 | 0.1 | 24 | 0.1 | 246 | 0.5 | 171 | 0.4 | 663 | 1.5 |
| 血清学筛查高风险 | 4923 | 3.7 | 29 | 0.6 | 12 | 0.2 | 3 | 0.1 | 25 | 0.5 | 30 | 0.6 | 99 | 2.0 |
| 血清学筛查临界风险 | 19 214 | 14.3 | 27 | 0.1 | 12 | 0.1 | 16 | 0.1 | 71 | 0.4 | 51 | 0.3 | 177 | 0.9 |
| NT增厚 | 712 | 0.5 | 16 | 2.2 | 12 | 1.7 | 5 | 0.7 | 4 | 0.6 | 4 | 0.6 | 41 | 5.8 |
| B超软指标异常 | 351 | 0.3 | 2 | 0.6 | 2 | 0.6 | 0 | 0.0 | 2 | 0.6 | 1 | 0.3 | 7 | 2.0 |
| B超检出胎儿结构异常 | 89 | 0.1 | 1 | 1.1 | 1 | 1.1 | 2 | 2.2 | 1 | 1.1 | 0 | 0 | 5 | 5.6 |
| 双胎/IVF-ET妊娠 | 5593 | 4.2 | 9 | 0.2 | 4 | 0.1 | 3 | 0.1 | 28 | 0.5 | 10 | 0.2 | 54 | 1.0 |
| 错过其他筛查时机 | 531 | 0.4 | 2 | 0.4 | 0 | 0 | 0 | 0 | 2 | 0.4 | 2 | 0.4 | 6 | 1.1 |
| 自愿要求 | 43 860 | 32.7 | 67 | 0.2 | 27 | 0.1 | 21 | 0 | 212 | 0.5 | 132 | 0.3 | 459 | 1.1 |
| 介入性手术禁忌证 | 82 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1.2 | 1 | 1.2 |
| 其他 | 13 035 | 9.7 | 9 | 0.1 | 6 | 0 | 3 | 0 | 48 | 0.4 | 69 | 0.5 | 135 | 1.0 |
| 合计 | 133 899 | 100.0 | 318 | 0.2 | 142 | 0.1 | 77 | 0.1 | 639 | 0.5 | 471 | 0.4 | 1647 | 1.2 |
), ArticleFig(id=1203005084146823257, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1202979642543141567, language=CN, label=表1, caption=
北京市2019-2020年NIPT筛查指征分布及异常结果阳性情况
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| 筛查指征 | 检测人数 | 构成比(%) | 21-三体综合征 | 18-三体综合征 | 13-三体综合征 | 性染色体异常 | 其他染色体异常 | 合计 |
|---|
| 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) | 高风险人数 | 阳性率(%) |
|---|
| 高龄妊娠 | 45 509 | 34.0 | 156 | 0.3 | 66 | 0.1 | 24 | 0.1 | 246 | 0.5 | 171 | 0.4 | 663 | 1.5 |
| 血清学筛查高风险 | 4923 | 3.7 | 29 | 0.6 | 12 | 0.2 | 3 | 0.1 | 25 | 0.5 | 30 | 0.6 | 99 | 2.0 |
| 血清学筛查临界风险 | 19 214 | 14.3 | 27 | 0.1 | 12 | 0.1 | 16 | 0.1 | 71 | 0.4 | 51 | 0.3 | 177 | 0.9 |
| NT增厚 | 712 | 0.5 | 16 | 2.2 | 12 | 1.7 | 5 | 0.7 | 4 | 0.6 | 4 | 0.6 | 41 | 5.8 |
| B超软指标异常 | 351 | 0.3 | 2 | 0.6 | 2 | 0.6 | 0 | 0.0 | 2 | 0.6 | 1 | 0.3 | 7 | 2.0 |
| B超检出胎儿结构异常 | 89 | 0.1 | 1 | 1.1 | 1 | 1.1 | 2 | 2.2 | 1 | 1.1 | 0 | 0 | 5 | 5.6 |
| 双胎/IVF-ET妊娠 | 5593 | 4.2 | 9 | 0.2 | 4 | 0.1 | 3 | 0.1 | 28 | 0.5 | 10 | 0.2 | 54 | 1.0 |
| 错过其他筛查时机 | 531 | 0.4 | 2 | 0.4 | 0 | 0 | 0 | 0 | 2 | 0.4 | 2 | 0.4 | 6 | 1.1 |
| 自愿要求 | 43 860 | 32.7 | 67 | 0.2 | 27 | 0.1 | 21 | 0 | 212 | 0.5 | 132 | 0.3 | 459 | 1.1 |
| 介入性手术禁忌证 | 82 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1.2 | 1 | 1.2 |
| 其他 | 13 035 | 9.7 | 9 | 0.1 | 6 | 0 | 3 | 0 | 48 | 0.4 | 69 | 0.5 | 135 | 1.0 |
| 合计 | 133 899 | 100.0 | 318 | 0.2 | 142 | 0.1 | 77 | 0.1 | 639 | 0.5 | 471 | 0.4 | 1647 | 1.2 |
), ArticleFig(id=1203005084285235298, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1202979642543141567, language=EN, label=Tab. 2, caption=
Analysis of screening effect of NIPT in Beijing form 2019 to 2020
, figureFileSmall=null, figureFileBig=null, tableContent=
| NIPT结果 | 高风险(例) | 真阳性(例) | 假阳性(例) | 假阴性(例) | 敏感度(%) | 特异度(%) | PPV(%) |
|---|
| 21-三体综合征 | 318 | 226 | 92 | 3 | 98.7 | 99.9 | 71.1 |
| 18-三体综合征 | 142 | 54 | 88 | 2 | 96.4 | 99.9 | 38.0 |
| 13-三体综合征 | 77 | 14 | 63 | 0 | 100.0 | 99.9 | 18.2 |
| 性染色体异常 | 639 | 200 | 439 | – | – | – | 31.3 |
| 其他染色体异常 | 471 | 84 | 387 | – | – | – | 17.8 |
| 合计 | 1647 | 578 | 1069 | 5 | 99.1 | 99.2 | 35.1 |
), ArticleFig(id=1203005084419453039, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1202979642543141567, language=CN, label=表2, caption=
北京市2019-2020年NIPT的筛查效果分析
, figureFileSmall=null, figureFileBig=null, tableContent=
| NIPT结果 | 高风险(例) | 真阳性(例) | 假阳性(例) | 假阴性(例) | 敏感度(%) | 特异度(%) | PPV(%) |
|---|
| 21-三体综合征 | 318 | 226 | 92 | 3 | 98.7 | 99.9 | 71.1 |
| 18-三体综合征 | 142 | 54 | 88 | 2 | 96.4 | 99.9 | 38.0 |
| 13-三体综合征 | 77 | 14 | 63 | 0 | 100.0 | 99.9 | 18.2 |
| 性染色体异常 | 639 | 200 | 439 | – | – | – | 31.3 |
| 其他染色体异常 | 471 | 84 | 387 | – | – | – | 17.8 |
| 合计 | 1647 | 578 | 1069 | 5 | 99.1 | 99.2 | 35.1 |
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