甲状腺癌的诊断数量增至三倍(美国,1975-2009年),而死亡率保持不变——这是一场“诊断的流行”(过度诊断),导致了本可避免的甲状腺手术。
原始表述
تشخيص سرطان الغدة الدرقية تضاعف ثلاث مرات بين 1975 و2009، بينما ظلّت الوفيات ثابتة عند ~0.5، أي وباء تشخيصي لا وباء مرضي.
按来源为原话. 译文由本项目提供;以阿拉伯语原文为准。
译文
甲状腺癌的诊断数量增至三倍(美国,1975-2009年),而死亡率保持不变——这是一场“诊断的流行”(过度诊断),导致了本可避免的甲状腺手术。
出处
- 来源状态
- 档案网站编辑
- 归属
- Archive editors (eltayebat.com); not necessarily Elawady's own words
- 出处
- https://eltayebat.com/rule/unnecessary-organ-removal/
- 归属的不确定性
- Editorial summary/narrative and study selection written by the archive operators; the archive states that the cited research documents harm independently of Dr. Diaa's words.
- 所声称的机制
Screening detects small papillary cancers that would not cause harm.
- 所声称的健康影响
Overtreatment.
- 涉及人群
General population
- Elawady 设定的地域限制
not applicable
科学评估
正确 – 该说法有可靠证据支持。
证据确定性: 高 – 进一步研究极不可能改变该评估。
1. 说法是什么?
Overdiagnosis epidemic in thyroid cancer.
2. 哪些内容可证实是正确的?
Incidence 4.9 -> 14.3 per 100,000 with mortality ~0.5 (A-ORG-19); in Korea screening correlated with incidence (r=0.77) but not mortality (I-ORG-02); USPSTF: net harm of screening asymptomatic adults (I-ORG-03).
3. 哪些内容是错误或夸大的?
'Avoidable thyroidectomies' is an inference, not measured, but consistent with USPSTF's statement on overtreatment.
4. 哪些内容仍不明确?
Which individual tumours are harmless.
5. 哪些研究支持该说法?
6. 哪些研究与该说法相矛盾?
None.
7. 对德国和欧洲而言情况如何?
Most cited cohorts are Scandinavian (Denmark, Sweden) and directly European; RCTs from the UK and Finland are directly transferable. Guidelines in Europe also emphasize defined indications (not verified here in detail).
8. 关于埃及的已知情况是什么?
No Egypt-specific data on rates or outcomes of tonsillectomy, cholecystectomy, hysterectomy, splenectomy or thyroid surgery were identified in this review.
9. 合理的实际结论是什么?
不建议对没有症状的人进行筛查;甲状腺结节需要适当的评估,而不是条件反射式地手术。
评估详情
- 证据确定性的依据
Consistent ecological data from the US and Korea, autopsy evidence (cited by authors), and a USPSTF recommendation against screening.
- 来源质量
Correctly reported.
- 地区可推广性
Overdiagnosis also reported in European countries (Vaccarella 2016; not abstracted, not used for numbers).
- 个体例外情况
Some thyroid cancers are aggressive and need surgery; the issue concerns screen-detected small papillary cancers.
- 说法的地域范围
- 普遍性(生物学/医学)
- 最近审核
- 2026年10月26日 初步
科学证据详解
有充分科学证据支持 – 该说法与一致的高质量证据相符。
研究问题: Did US thyroid cancer incidence triple 1975-2009 while mortality stayed flat, indicating overdiagnosis that drives avoidable thyroid surgery?
研究问题详解 (PECO)
- 人群
- General population (US and worldwide)
- 干预或暴露
- Thyroid imaging/screening intensity over time
- 对照
- Earlier periods / countries with less screening
- 地域范围
- universal; magnitude depends on national screening practice
- 结局指标
- Thyroid cancer incidence
- Thyroid cancer mortality
- Proportion overdiagnosed
研究结果按作者报告呈现。我们的评估见下文。
哪些证据支持该说法?
US thyroid cancer: more diagnoses, same deaths
Davies L et al.. JAMA Otolaryngol Head Neck Surg 2014 · PMID 24557566 · DOI 10.1001/jamaoto.2014.1 生态学研究已核查摘要Davies 2014: US incidence 4.9 to 14.3 per 100,000; mortality stable around 0.5.
- 实际结果
- RR 2.9 (2.7-3.1).
- 方法学质量
- moderate (registry)
- 相关性
- direct
- 局限
- Ecological.
Thyroid cancer overdiagnosis in 63 countries
Li M et al.. Lancet Diabetes Endocrinol 2024 · PMID 39389067 · DOI 10.1016/S2213-8587(24)00223-7 生态学研究已核查摘要新增Li 2024: 75.6% of thyroid cancers in 63 countries attributed to overdiagnosis.
- 实际结果
- 1,736,133 of 2,297,057 cases.
- 方法学质量
- moderate (multi-country registry modelling)
- 相关性
- direct
- 局限
- Model-based.
Korea: thyroid screening and cancer diagnoses
South Korea: screening intensity strongly correlated with papillary cancer incidence, not mortality.
- 实际结果
- r = 0.77 vs mortality r = -0.08.
- 方法学质量
- moderate (ecological)
- 相关性
- direct
- 局限
- Ecological.
哪些证据不支持该说法?
US thyroid cancer trends 1974-2013
Lim 2017: incidence-based mortality rose slightly (1.1% per year), especially for advanced papillary cancer, indicating some true increase.
- 实际结果
- Mortality 0.40 to 0.46 per 100,000.
- 方法学质量
- moderate (registry)
- 相关性
- direct
- 局限
- Small absolute numbers.
总体证据说明了什么?
基于上述研究的编辑评估——其本身并非研究结果。
哪种观点有更好的证据支持?
Overdiagnosis explains most of the rise in thyroid cancer incidence; a small true increase in advanced cancers also exists.
为什么有些研究权重更大
Several independent registry analyses across countries agree; Lim 2017 qualifies rather than contradicts.
因果关系是否已确立? 很可能 Strong dose-response between screening intensity and incidence (Korea) without mortality change.
仍存在的不确定性
Share of true increase in some countries.
合理的结论
Correct; it does not imply that thyroid nodules or cancers never need treatment.
为什么研究结果看起来互相矛盾?
Lim 2017 and Davies 2014 use different mortality measures (incidence-based vs overall) and periods; both agree that incidence tripled with very small mortality change.
这是否取决于国家?
- 一般生物学效应
- Universal phenomenon tied to imaging use.
- 饮食习惯
- Not relevant to this claim.
- 食品原产地
- Not applicable.
- 污染物
- Not applicable.
- 本国生产条件
- Not applicable.
- 法律规则
- Not applicable.
- 实际监测数据
- Egypt not reported in the abstracts read; overdiagnosis is expanding in transitioning countries (Li 2024).
足以改变结论的地区差异没有可靠数据支持。
统计复核
- Incidence and mortality ratios – Incidence x3.16; mortality +15% relative (+0.06/100,000 absolute) 已重新计算
- Overdiagnosis proportion – 75.6% reproduced 已重新计算
总体证据的确定性(GRADE,简化版)
- 主要结局
- Overdiagnosis share of thyroid cancer incidence
- 起始等级
- 低(观察性研究)
- 升级理由
- large effect
- dose-response (screening intensity)
- consistency across countries
- 结果
- 高
由单名审查者参照 GRADE 方法进行的简化评估;并非正式的 GRADE 专家组评估。GRADE 评价的是针对某一结局的整体证据,而非单项研究。
已核查的临床指南和官方声明
- USPSTF: Screening for Thyroid Cancer: Recommendation Statement (2017) · 原始文献
Recommends against screening asymptomatic adults for thyroid cancer (registered as I-ORG-03). - American Thyroid Association: 2015 ATA Management Guidelines for Adult Patients with Thyroid Nodules and Differentiated Thyroid Cancer (2015/2016) · 原始文献
Most asymptomatic benign nodules with modest growth should be followed without intervention (strong); surgery may be considered for growing benign nodules > 4 cm or with compressive symptoms; total/near-total thyroidectomy for cancers > 4 cm, extrathyroidal extension or metastases (I-ORG-114).
检索策略
本次审查的文献检索记录(检索式采用原数据库语法)。
| 数据库 | 日期 | 检索式 | 检索目标 | 命中数 | 纳入数 |
|---|---|---|---|---|---|
| PubMed | 2026年10月26日 | (thyroid cancer[ti]) AND (incidence[ti]) AND (mortality[ti]) AND (trends[ti]) AND (United States OR worldwide OR global) AND 2016:2026[dp] | 双向 | 13 | |
| Europe PMC | 2026年10月26日 | (TITLE:"thyroid cancer") AND (TITLE:overdiagnosis) AND (TITLE:worldwide OR TITLE:global OR TITLE:countries) | 支持性证据 | 6 | |
| PubMed | 2026年10月26日 | (thyroid cancer[ti]) AND overdiagnosis[ti] AND (Egypt OR Arab OR Middle East OR Saudi) | 双向 | 1 | |
| PubMed | 2026年10月26日 | (thyroid nodule*[ti] OR papillary microcarcinoma[ti]) AND (active surveillance[ti]) | 双向 | 38 | |
| PubMed | 2026年10月26日 | American Thyroid Association management guidelines thyroid nodules differentiated thyroid cancer[ti] | 指南 | 38 |
待解决的问题
Egypt-specific thyroid cancer incidence/mortality trends.
核查深度如何?
6 项相关研究:0 项核查了全文(其中 0 项进行了结构化偏倚风险评估),5 项基于摘要核查,1 项仅核查了文献信息。 尚未进行由两名独立审查者完成的正式评估,也尚未进行独立的人类专家审核。
最近一次科学审核: 2026年10月26日
通俗解释
该档案网站称,甲状腺癌诊断数量的大幅上升,主要是因为发现了小的、无害的癌症。这是正确的,也被广泛接受。在美国,诊断数量增至近三倍,而死亡人数没有变化;在韩国,筛查更多的地区发现了更多癌症,而死亡人数没有任何变化。专家建议不要对没有症状的健康人进行筛查。
与该说法相关的研究
支持该说法的研究 (4)
-
US thyroid cancer: more diagnoses, same deaths
Davies L et al.. JAMA Otolaryngol Head Neck Surg 2014 · PMID 24557566 · DOI 10.1001/jamaoto.2014.1生态学研究被 Tayebat 档案网站引用已核查摘要★ 关键研究Diagnoses nearly tripled from 1975 to 2009 while deaths stayed at about 0.5 per 100,000.
该研究是否支持这一具体说法? 是 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Overdiagnosis
- 研究是如何开展的?
Trend analysis
- 研究了多少人、动物或样本?
SEER 9
- 实际发现了什么?
Incidence up, mortality flat
- 观察到的效应有多大?
RR 2.9
- 研究结果对日常生活意味着什么?
Many small cancers found would never have caused harm
- 该研究有哪些局限?
Ecological
- 它对 Elawady 的具体说法说明了什么?
Supports
- 研究结果是否适用于德国和欧洲?
Similar in Europe (not verified here)
- 从该研究中明确不能得出什么结论?
Which individual tumours are harmless
-
Korea: thyroid screening and cancer diagnoses
Ahn HS et al.. Thyroid 2016 · PMID 27627550 · DOI 10.1089/thy.2016.0075生态学研究独立交叉核查已核查摘要★ 关键研究Regions that screened more found far more small papillary cancers, without any effect on thyroid cancer deaths.
该研究是否支持这一具体说法? 是 · 方法学质量: 中 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Screening effect
- 研究是如何开展的?
Ecological
- 研究了多少人、动物或样本?
16 regions
- 实际发现了什么?
Screening drives incidence
- 观察到的效应有多大?
r=0.77
- 研究结果对日常生活意味着什么?
Screening healthy people finds harmless cancers
- 该研究有哪些局限?
Ecological
- 它对 Elawady 的具体说法说明了什么?
Supports overdiagnosis claim
- 研究结果是否适用于德国和欧洲?
Less screening in Europe
- 从该研究中明确不能得出什么结论?
Individual harm
-
US task force: do not screen healthy adults for thyroid cancer
US Preventive Services Task Force. JAMA 2017 · PMID 28492905 · DOI 10.1001/jama.2017.4011指南 / 立场声明独立交叉核查已核查摘要Screening does more harm than good because it finds many harmless cancers.
该研究是否支持这一具体说法? 是 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Screening policy
- 研究是如何开展的?
Guideline
- 研究了多少人、动物或样本?
n/a
- 实际发现了什么?
Net harm
- 观察到的效应有多大?
D recommendation
- 研究结果对日常生活意味着什么?
Avoid screening without symptoms
- 该研究有哪些局限?
Indirect evidence
- 它对 Elawady 的具体说法说明了什么?
Supports overdiagnosis claim
- 研究结果是否适用于德国和欧洲?
Applicable
- 从该研究中明确不能得出什么结论?
Management of symptomatic nodules
-
Thyroid cancer overdiagnosis in 63 countries
Li M et al.. Lancet Diabetes Endocrinol 2024 · PMID 39389067 · DOI 10.1016/S2213-8587(24)00223-7生态学研究独立交叉核查已核查摘要★ 关键研究About three in four thyroid cancer diagnoses worldwide were estimated to be overdiagnosis, while deaths stayed low.
About three quarters of thyroid cancer diagnoses worldwide are estimated to be overdiagnosed.
该研究是否支持这一具体说法? 是 · 方法学质量: 中 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Estimate thyroid cancer overdiagnosis worldwide
- 研究是如何开展的?
Analysis of cancer registries and mortality data
- 研究了多少人、动物或样本?
63 countries, 2.3 million cases
- 实际发现了什么?
75.6% of cases attributed to overdiagnosis
- 观察到的效应有多大?
n/a
- 研究结果对日常生活意味着什么?
Many small thyroid cancers would never cause harm
- 该研究有哪些局限?
Model-based
- 它对 Elawady 的具体说法说明了什么?
Supports the claim
- 研究结果是否适用于德国和欧洲?
Applies to Europe
- 从该研究中明确不能得出什么结论?
Cannot tell which individual cancer is harmless
该组中没有被标记为关键研究的研究。
与该说法相矛盾或限制该说法的研究 (1)
-
US thyroid cancer trends 1974-2013
Lim H et al.. JAMA 2017 · PMID 28362912 · DOI 10.1001/jama.2017.2719生态学研究独立交叉核查已核查摘要★ 关键研究Thyroid cancer diagnoses tripled; deaths rose only slightly, mainly from advanced cancers.
Mortality did not stay completely flat; a small true increase in advanced cancers exists alongside overdiagnosis.
该研究是否支持这一具体说法? 部分支持 · 方法学质量: 中 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Check whether rising thyroid cancer diagnoses reflect a real increase
- 研究是如何开展的?
US cancer registry analysis
- 研究了多少人、动物或样本?
77,276 patients
- 实际发现了什么?
Incidence tripled; small rise in mortality for advanced disease
- 观察到的效应有多大?
Mortality +1.1% per year
- 研究结果对日常生活意味着什么?
Most new cases are small, but some real increase exists
- 该研究有哪些局限?
Registry data only
- 它对 Elawady 的具体说法说明了什么?
Mostly supports overdiagnosis, with a caveat
- 研究结果是否适用于德国和欧洲?
Similar patterns in Europe
- 从该研究中明确不能得出什么结论?
Cannot say which individual cancers need surgery
该组中没有被标记为关键研究的研究。
结果不一或不明确的研究 (1)
-
Korea's thyroid cancer 'epidemic'
Ahn HS, Kim HJ, Welch HG. N Engl J Med 2014 · PMID 25372084 · DOI 10.1056/NEJMp1409841其他独立交叉核查已核实文献信息Title indicates screening-driven overdiagnosis; content not verified here.
该研究是否支持这一具体说法? 不明确 · 方法学质量: 中 · 证据确定性:见该说法的总体评估
该组中没有被标记为关键研究的研究。
地区背景
德国 / 欧盟
Most cited cohorts are Scandinavian (Denmark, Sweden) and directly European; RCTs from the UK and Finland are directly transferable. Guidelines in Europe also emphasize defined indications (not verified here in detail).
埃及
No Egypt-specific data on rates or outcomes of tonsillectomy, cholecystectomy, hysterectomy, splenectomy or thyroid surgery were identified in this review.
在我的国家适用什么?
一般科学评估
正确 正确:甲状腺癌的过度诊断已有充分记录。
该说法涉及生物学或医学关系。上述科学评估不论在哪个国家都适用;各国食品数据不会改变这一评估。
参考文献
- Current thyroid cancer trends in the United States.. Davies L et al.. JAMA Otolaryngol Head Neck Surg 2014 · PMID 24557566 · DOI 10.1001/jamaoto.2014.1
- Thyroid Cancer Screening in South Korea Increases Detection of Papillary Cancers with No Impact on Other Subtypes or Thyroid Cancer Mortality.. Ahn HS et al.. Thyroid 2016 · PMID 27627550 · DOI 10.1089/thy.2016.0075
- Screening for Thyroid Cancer: US Preventive Services Task Force Recommendation Statement.. US Preventive Services Task Force. JAMA 2017 · PMID 28492905 · DOI 10.1001/jama.2017.4011
- Evolving epidemiological patterns of thyroid cancer and estimates of overdiagnosis in 2013-17 in 63 countries worldwide: a population-based study.. Li M et al.. Lancet Diabetes Endocrinol 2024 · PMID 39389067 · DOI 10.1016/S2213-8587(24)00223-7
- Trends in Thyroid Cancer Incidence and Mortality in the United States, 1974-2013.. Lim H et al.. JAMA 2017 · PMID 28362912 · DOI 10.1001/jama.2017.2719
- Korea's thyroid-cancer "epidemic"--screening and overdiagnosis.. Ahn HS, Kim HJ, Welch HG. N Engl J Med 2014 · PMID 25372084 · DOI 10.1056/NEJMp1409841