| Study characteristics |
| Patient sampling |
Young adults (18 to 44 years of age) who underwent CT for suspected appendicitis from August to October 2015 |
| Patient characteristics and setting |
Women 57%. Mean age 27 years (age range not stated). Emergency Department at a tertiary hospital in Seoul, Korea |
| Index tests |
Low‐dose abdominopelvic CT with IV contrast. Assessments by 6 radiologists |
| Target condition and reference standard(s) |
Acute appendicitis. Operative findings and histopathological analysis of the removed appendix for participants who had surgery. Follow‐up based on medical records and standardised telephone interviews after 3 months for participants who did not have surgery |
| Flow and timing |
57 patients were eligible; 30 were included in the study and in the analyses. 9 (30%) participants had appendicitis |
| Comparative |
Step‐wise comparisons of 1.5‐, 1.0‐, and 0.5‐mSv low‐dose CT vs 2.0‐mSv low‐dose CT using a paired non‐inferiority design |
| Notes |
This study was identified by a search update during the editorial process of the review |
