The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row. In the first example the result is meets USPSTF 2021.
The calculator is not an LDCT order and does not diagnose lung cancer. The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row.
Enter data and click Calculate.
The calculator uses the numbers you enter. The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row. In the first example the result is meets USPSTF 2021.
The five form fields are Age, Pack-years smoked, Years since quitting, Respiratory symptom burden, and Family history of lung cancer. USPSTF 2021 means: This is the main result on this page. In the first example it is meets USPSTF 2021. Age means: The first form field. It enters the formula or sits beside the result. The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row. Pack-years smoked means: The second form field. The calculator is not an LDCT order and does not diagnose lung cancer.
The second example gives does not meet USPSTF 2021. The third example gives meets USPSTF 2021. The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row. In the first example the result is meets USPSTF 2021.
The calculator is not an LDCT order and does not diagnose lung cancer.
Enter 58, 25, 2, 3, 0, then click Calculate. A comma in 12.5 is read the same way as a period. Fields on a 0-10 scale are notes and are not the primary result unless this page formula says so.
The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row.
In the first example the result is meets USPSTF 2021. The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row.
meets USPSTF 2021
The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row. In the first example the result is meets USPSTF 2021.
does not meet USPSTF 2021
The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row. In the second example the result is does not meet USPSTF 2021.
meets USPSTF 2021
The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row. In the third example the result is meets USPSTF 2021.
In the first example the result is meets USPSTF 2021. The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row.
With the second set of fields the result is does not meet USPSTF 2021.
With the third set of fields the result is meets USPSTF 2021.
The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row.
The calculator is not an LDCT order and does not diagnose lung cancer.
This is the main result on this page. In the first example it is meets USPSTF 2021. The first form field. It enters the formula or sits beside the result. The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row. The second form field. The calculator is not an LDCT order and does not diagnose lung cancer.
Yes. 12.5 and 12,5 are read the same way.
No. Fields on a 0-10 scale are notes, unless this page formula counts marked items from them. The primary result comes from this page formula.
When age is 50-80, pack-years are at least 20, and the person currently smokes or quit under 15 years. A 99 in years since quitting means never smoked.
No. Pack-years sit in the second row. The main result is yes or no versus USPSTF 2021.
No. The calculator is not an LDCT referral and does not diagnose lung cancer.
Age outside 50-80 fails the criterion, even with high pack-years.
99 in years since quitting. Then the smoking criterion is not met.
The result says whether USPSTF 2021 criteria for LDCT are met: age 50-80, at least 20 pack-years, and current smoking or quit under 15 years. A 99 in years since quitting means never smoked. Pack-years sit in the second row. The calculator is not an LDCT order and does not diagnose lung cancer.
Page updated in 2026.
