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This corrigendum paper reports an error correction to Supplementary Table 1 from a previously published study that developed an endometriosis self-assessment tool for patients, consisting of questionnaire items assessing premenstrual, menstrual, and usual symptoms with response options (never to always). The key update is that Supplementary Table 1 was published incorrectly and is now corrected, with changes indicated in underlined text in the revised version. The limitation explicitly acknowledged is the publication error itself, implying that readers of the earlier table may have used inaccurate item wording/content. This paper is centrally about endometriosis — it provides a corrected patient self-assessment tool for endometriosis symptoms.
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www.ogscience.org 431
Development of an endometriosis self-assessment tool
for patient
Hyun-Hee Cho, MD
1
, Young-Sub Yoon, PhD
2
1
Department of Obstetrics & Gynecology, Catholic University College of Medicine, Seoul;
2
Department of Nursing, Incheon Catholic University College
of Nursing, Incheon, Korea
In the published article, “Hyun-Hee Cho, et al. Development of an endometriosis self-assessment tool for patient. Obstet Gy -
necol Sci 2022;65(3):256-265. https://doi.org/10.5468/ogs.21252,” Supplementary Table 1 was published incorrectly.
Before correction
Supplementary Table 1. Endometriosis self-assessment tool
Item Never Rarely Often Always
Premenstrual symptoms
1. I have constipation or diarrhea before my period. ① ② ③ ④
2. I am sensitive and feel irritable before my period. ① ② ③ ④
3. I have bleeding or pain during the ovulation period. ① ② ③ ④
Menstrual Symptoms
4. I have difficulties in daily living (in work or school) due to severe menstrual pain. ① ② ③ ④
5. I have experienced fainting or visited an emergency room due to severe menstrual pain ① ② ③ ④
6. I have sharp or needle-like pain in the lower abdomen during my period. ① ② ③ ④
7. I feel tense or pain in the perineum as if something was falling out during my period. ① ② ③ ④
8. I have severe backaches during my period. ① ② ③ ④
9. I experience cold on hands/feet or chilling during my period. ① ② ③ ④
10. I have abdominal gas or bloating during my period. ① ② ③ ④
11. I have pain as if my bowels were twisted during my period, and this pain worsened by
diarrhea or constipation. ① ② ③ ④
12. I feel bladder pressure or pain on voiding during my period ① ② ③ ④
13. I have large blood clumps during my period. ① ② ③ ④
14. I have thick bleeding during my period. ① ② ③ ④
15. I experience sudden menstrual bleeding heavy enough to wet a sanitary pad completely. ① ② ③ ④
Usual symptoms
16. I have bleeding or a dark discharge for a few days after my period ① ② ③ ④
17. I often have stomatitis or cystitis between my periods. ① ② ③ ④
19. I always worry about my period, so I feel that I am ruled by my period. ① ② ③ ④
20. I am sensitive to changes in my body during my menstrual cycle. ① ② ③ ④
21. I feel powerless, helpless, and tired all the time. ① ② ③ ④
Corrigendum
Obstet Gynecol Sci 2024;67(4):431-432
https://doi.org/10.5468/ogs.21252.e1
eISSN 2287-8580
www.ogscience.org432
Vol. 67, No. 4, 2024
After correction: Changes are marked by underlines.
Supplementary Table 1. Endometriosis self-assessment tool
Item Never Rarely Often Always
Premenstrual symptoms
1. I have constipation or diarrhea before my period. ① ② ③ ④
2. I am sensitive and feel irritable before my period. ① ② ③ ④
3. I have bleeding or pain during the ovulation period. ① ② ③ ④
Menstrual symptoms
4. I have difficulties in daily living (in work or school) due to severe menstrual pain. ① ② ③ ④
5. I have experienced fainting or visited an emergency room due to severe menstrual pain. ① ② ③ ④
6. I have sharp or needle-like pain in the lower abdomen during my period. ① ② ③ ④
7. I feel tense or pain in the perineum as if something was falling out during my period. ① ② ③ ④
8. I have severe backaches during my period. ① ② ③ ④
9. I experience cold on hands/feet or chilling during my period. ① ② ③ ④
10. I have abdominal gas or bloating during my period. ① ② ③ ④
11. I have pain as if my bowels were twisted during my period, and this pain worsened by
diarrhea or constipation. ① ② ③ ④
12. I feel bladder pressure or pain on voiding during my period. ① ② ③ ④
13. I have large blood clumps during my period. ① ② ③ ④
14. I have thick bleeding during my period. ① ② ③ ④
15. I experience sudden menstrual bleeding heavy enough to wet a sanitary pad completely. ① ② ③ ④
Usual symptoms
16. I have bleeding or a dark discharge for a few days after my period. ① ② ③ ④
17. I often have stomatitis or cystitis between my periods. ① ② ③ ④
18. I have severe coitus pain, which impedes my sexual life. ① ② ③ ④
19. I always worry about my period, so I feel that I am ruled by my period. ① ② ③ ④
20. I am sensitive to changes in my body during my menstrual cycle. ① ② ③ ④
21. I feel powerless, helpless, and tired all the time. ① ② ③ ④
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