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LUNGS & BREATHINGLow-dose CT: who shouldand shouldn’t1USPSTF 2021: aged 50–80, ≥20 pack-years,current smoker or quit <15 years → yearly2NLST: in heavy smokers, LDCT cut lung-cancermortality by 20% (relative)3The cost: 24% of scans positive, 96% of thoseturn out not to be cancer4Overdiagnosis is about 18% of detected cancers5Never-smokers without family history: norandomised trial shows lower mortality6LDCT uses no contrast — no direct effect onkidney functionTaiwan’s public programme also covers family history — checkthe Health Promotion Administration for criteria. Quittingbeats any screening.BBeyond CKDbeyondckd.com/ko/cards/who-should-get-ldctSources: NLST · USPSTF 2021 · 2026-10-17Compiled from public clinical guidelines · General education, not individual medical advice
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Lungs & breathing

Low-dose CT: who should and shouldn’t

Annual LDCT lung-cancer screening for everyone? The evidence only supports high-risk groups.

  1. 1USPSTF 2021: aged 50–80, ≥20 pack-years, current smoker or quit <15 years → yearly
  2. 2NLST: in heavy smokers, LDCT cut lung-cancer mortality by 20% (relative)
  3. 3The cost: 24% of scans positive, 96% of those turn out not to be cancer
  4. 4Overdiagnosis is about 18% of detected cancers
  5. 5Never-smokers without family history: no randomised trial shows lower mortality
  6. 6LDCT uses no contrast — no direct effect on kidney function

Taiwan’s public programme also covers family history — check the Health Promotion Administration for criteria. Quitting beats any screening.

게시글 문구(바로 붙여넣기)

Annual LDCT lung-cancer screening for everyone? The evidence only supports high-risk groups.

1. USPSTF 2021: aged 50–80, ≥20 pack-years, current smoker or quit <15 years → yearly
2. NLST: in heavy smokers, LDCT cut lung-cancer mortality by 20% (relative)
3. The cost: 24% of scans positive, 96% of those turn out not to be cancer
4. Overdiagnosis is about 18% of detected cancers
5. Never-smokers without family history: no randomised trial shows lower mortality
6. LDCT uses no contrast — no direct effect on kidney function

Taiwan’s public programme also covers family history — check the Health Promotion Administration for criteria. Quitting beats any screening.

출처(카드의 각 항목과 대응): NLST — Reduced lung-cancer mortality with LDCT — N Engl J Med 2011; USPSTF 2021 — Screening for lung cancer
확인일: 2026-10-17

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https://beyondckd.com/ko/cards/who-should-get-ldct
60초 숏폼 영상 대본

장면과 내레이션. 세로 9:16, 자막은 하단 1/3에. 각 내레이션은 왼쪽 출처와 대응.

초화면내레이션
0–5CT scannerShould you get a low-dose CT every year?
5–25USPSTF criteriaUS guidance: aged 50 to 80, 20 pack-years, still smoking or quit under 15 years ago — once a year.
25–4524% positive → 96% falseNLST cut lung-cancer deaths by 20%, but a quarter of scans were positive and 96% of those were not cancer.
45–60Never-smoker question markFor never-smokers, no randomised trial shows yearly LDCT helps. Family history? Talk to your doctor.

출처(카드의 각 항목과 대응)

확인일: 2026-10-17