Page 47 - 2023 Taiwan Health and Welfare Report

03 An Environment Conducive to Health 03

Screening Volume and Rate, Number of Precancerous Lesions, Number of
Table 3-1 Cancer Cases, and Follow-up Rates for Positive Screenings for Five Major
Types of Cancer, 2022

Screening Volume Screening Precancerous Cancer Follow-up Rate for
Cancer Type
(Ten Thousands) Rate (%) Lesions Cases Positive Screenings (%)
13,135 (including
Cervical Cancer 198.3 50.0 1,343 90.5
carcinoma in situ)
Breast Cancer 85.7 33.8 - 4,783 90.6
Colorectal Cancer 121.6 30.0 31,659 2,393 72.9
Oral Cancer 30.2 - 2,890 1,037 80.3
Lung Cancer 2.3 - - 370 77.7
Total 438.1 47,684 9,926
Notes: 1. Cervical cancer screening rate: the rate of women aged 30-69 who have received a screening for cervical cancer within the past
three years.
2. Breast cancer screening rate: the rate of women aged 45-69 who have received a screening for breast cancer within the past
two years.
3. Colorectal cancer screening rate: the rate of people aged 50-74 who have received a screening for colorectal cancer within the
past two years.
4. Oral cancer screening rate: since the screening for oral cancer focus primarily on smokers and betel quid chewers (including
those who quit) and the denominator already covers those with the habit of smoking and betel nut chewing, and as such, this
data will no longer be included starting from 2017 onward.
5. Lung cancer screening rate: the screening rate for lung cancer could not be estimated due to the unavailability of the population
base, thus no screening rate data is available.
6. Precancerous lesion: is a kind of benign (non-malignant) change in tissue type, however, the change has relatively high risk of
malignant disorder.

Table 3-2 Detection Status for Five Major Types of Cancer in 2022

Cancer detection rate (Estimates based on 100% follow-up of positive cases)
Cancer Type
Precancerous Lesions Cancer Total
Cervical Cancer 1/79 1/1063 1/74
Breast Cancer - 1/169 1/169
Colorectal Cancer 1/31 1/368 1/28
Oral Cancer 1/84 1/233 1/62
Lung Cancer - 1/63.2 1/63.2
Note: 1. Precancerous Lesion Detection Rate (Based on 100% follow up): defined as precancerous lesion cases/number of screenings
2. Cancer Detection Rate (based on 100% follow up): cancer cases/number of screenings
3. Overall Detection Rate (based on 100% Follow up): (precancerous lesions + cancer cases)/number of screenings
4. 1/Detection Rate = number of people who must be screened on average to detect one positive case

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