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Table 5 Internal consistency for the instruments of the PGQ

From: Cross-cultural adaptation, reliability, and validity of a Chinese version of the pelvic girdle questionnaire

  Number of women with missing data All women, mean (SD) Cronbach’s alpha
PGQ total    0.93
PGQ activity    0.92
1. Dress yourself 0 0.55(0.81)  
2. Stand for less than 10 min 0 0.43(0.70)  
3. Stand for more than 60 min 0 1.72(0.95)  
4. Bend down 0 1.60(0.89)  
5. Sit for less than 10 min 0 0.38(0.77)  
6. Sit for more than 60 min 0 1.50(0.97)  
7. Walk for less than 10 min 0 0.59(0.78)  
8. Walk for more than 60 min 0 1.79(0.91)  
9. Climb stairs 0 1.29(0.90)  
10. Do housework 0 1.22(0.84)  
11. Carry light objects 0 0.78(0.76)  
12. Carry heavy objects 0 2.10(0.85)  
13. Get up/sit down 0 1.10(0.96)  
14. Push a shopping cart 0 0.41(0.67)  
15. Run 0 1.72(1.01)  
16. Carry out sporting activities 18 1.84(.092)  
17. Lie down 0 0.98(0.98)  
18. Roll over in bed 0 1.72(1.06)  
19. Have a normal sex life 34 1.05(0.97)  
20. Push something with 1 foot 0 1.14(0.86)  
PGQ symptom    0.77
21. Pain in the morning 0 1.12(0.77)  
22. Pain in the evening 0 1.65(0.72)  
23. Has your leg/have your legs given way? 0 0.83(0.74)  
24. Do you do things more slowly? 0 1.52(0.75)  
25. Is your sleep interrupted? 0 0.85(0.81)  
  1. Note: PGQ Pelvic Girdle Questionnaire