Table 2 Internal consistency of the CSS questionnaire in the Chinese version.

From: Evaluation of the Chinese version of the constipation scoring system in Chinese women with pelvic organ prolapse

 

Scope of score

Average

Standard deviation

Corrected item-total correlation

Cronbach’s α if item deleted

1. Frequency of bowel movements

0–4

0.18

0.420

0.394

0.709

2. Difficulty: painful evacuation effort

0–4

1.05

1.189

0.572

0.653

3. Completeness: feeling incomplete evacuation

0–4

1.36

1.247

0.429

0.694

4. Pain: abdominal pain

0–4

0.44

0.867

0.253

0.722

5. Time: minutes in lavatory per attempt

0–4

0.69

0.804

0.491

0.680

6. Assistance: type of assistance

0–2

0.55

0.834

0.374

0.700

7. Failure: unsuccessful attempts for evacuation per 24 h

0–4

0.56

0.552

0.472

0.694

8. History: duration of constipation (yr)

0–4

0.93

1.290

0.496

0.676

  1. Except for the fourth item, pain, other items did not increase the overall Cronbach's α coefficient of the questionnaire after the deletion.
Back to article page