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Table 5 Proportions of missing answers in EPIC items at 0, 6 and 12 months post-diagnosis

From: Missingness in the expanded prostate cancer index short form (EPIC-26) – prevalence, patterns, and explanatory factors

EPIC domain

Item

0 months, n = 625

6 months, n = 598

12 months, n = 588

Mean

Urinary incontinence

1. Over the past 4 weeks, how often have you leaked urine?

1.3%

1.2%

0.3%

0.9%

2. Which of the following best describes your urinary control during the last 4 weeks?

1.3%

1.2%

0.3%

0.9%

3. How many pads of adult diapers per day did you usually use to control leakage during the last 4 weeks?

2.2%

1.2%

0.2%

1.2%

4. a. How big a problem, if any, has dripping or leaking urine been for you buring the last 4 weeks?

4.0%

3.5%

2.4%

3.3%

Urinary irritative

4. b. How big a problem, if any, has pain or burning of urination been for you buring the last 4 weeks?

3.8%

3.7%

3.6%

3.7%

4. c. How big a problem, if any, has bleeding with urination been for you during the last 4 weeks?

4.3%

5.3%

3.9%

4.5%

4. d. How big a problem, if any, has weak urine stream or incomplete emptying been for you during the last 4 weeks?

3.4%

2.2%

2.4%

2.7%

4. e. How big a problem, if any, has need to urinate frequently during the day been for you during the last 4 weeks?

3.0%

2.5%

2.2%

2.6%

Not in domain

5. Overall, how big a problem has your urinary function been for you during the last 4 weeks?

1.4%

1.0%

0.7%

1.0%

Bowel

6. a. How big a problem, if any, has urgency to have a bowel movement been for you?

2.1%

2.5%

1.4%

2.0%

6. b. How big a problem, if any, has increased frequency of bowel movements been for you?

3.2%

2.8%

1.5%

2.5%

6. c. How big a problem, if any, has losing control of your stools been for you?

3.5%

2.7%

1.9%

2.7%

6. d. How big a problem, if any, has bloody stools been for you?

3.5%

3.0%

2.6%

3.0%

6. e. How big a problem, if any, has abdominal/pelvic/rectal pain been for you?

2.9%

2.5%

1.9%

2.4%

7. Overall, how big a problem have your bowel habits been for you during the last 4 weeks?

0.8%

0.3%

0.7%

0.6%

Sexual

8. a. How would you rate your ability to have an erection during the last 4 weeks?

4.3%

3.2%

3.9%

3.8%

8. b. How would you rate your ability to reach orgasm (climax) during the last 4 weeks?

6.4%

4.3%

6.0%

5.6%

9. How would you describe the usual QUALITY of your erections during the last 4 weeks?

3.5%

2.3%

3.2%

3.0%

10. How would you describe the usual FREQUENCY of your erections during the last 4 weeks?

8.3%

5.7%

6.0%

6.7%

11. Overall, how would you rate your ability to function sexually during the last 4 weeks?

4.6%

3.7%

4.1%

4.1%

12. Overall, how big a problem has your sexual function or lack of sexual function been for you during the last 4 weeks?

4.3%

2.5%

3.4%

3.4%

Hormonal

13. a. How big a problem during the last 4 weeks, if any, has hot flashes been for you?

5.9%

6.2%

5.6%

5.9%

13. b. How big a problem during the last 4 weeks, if any, has breast tenderness/ enlargement been for you?

8.6%

8.8%

8.0%

8.5%

13. c. How big a problem during the last 4 weeks, if any, has feeling depressed been for you?

4.2%

5.3%

4.6%

4.7%

13. d. How big a problem during the last 4 weeks, if any, has lack of energy been for you?

4.3%

4.8%

4.4%

4.5%

13. e. How big a problem during the last 4 weeks, if any, has change in body weight been for you?

5.3%

4.5%

4.4%

4.7%