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Table 1 Respondent characteristics by questionnaire package (N = 1277)

From: Order effects: a randomised study of three major cancer-specific quality of life instruments

Variable

 

Questionnaire Package

 
  

EORTC QLQ-C30 + FACT-G (N = 200)

FACT-G + EORTC QLQ-C30(N = 240)

EORTC QLQ-C30 + FLIC (N = 233)

FLIC + EORTC QLQ-C30 (N = 188)

FACT-G + FLIC (N = 215)

FLIC + FACT-G (N = 201)

p-value(a)

Age

Mean (SD)

51.0 (12.0)

51.6 (12.5)

50.6 (9.9)

51.0 (10.3)

51.4 (10.5)

51.4 (11.6)

0.933

Gender

Male

43.5%

40.8%

36.1%

41.0%

43.7%

38.3%

0.547

 

Female

56.5%

59.2%

64.0%

59.0%

56.3%

61.7%

 

Race

Chinese

88.0%

91.3%

90.6%

91.0%

90.7%

89.1%

0.446

 

Malay

6.5%

4.6%

3.4%

2.7%

3.7%

4.5%

 
 

Indian

4.0%

3.8%

3.0%

4.3%

2.3%

5.5%

 
 

Others

1.5%

0.4%

3.0%

2.1%

3.3%

1.0%

 

Education

Primary or below

22.1%

20.4%

21.0%

19.2%

23.8%

21.9%

0.212

 

Secondary

44.7%

43.8%

49.4%

57.9%

45.3%

47.8%

 
 

Post-secondary

33.2%

35.8%

29.6%

22.9%

30.8%

30.4%

 

ECOG

0–1

75.5%

72.5%

75.1%

71.8%

69.8%

72.0%

0.772

 

2–4

24.5%

27.5%

24.9%

28.2%

30.2%

28.0%

 

Treatment

Inactive

59.0%

69.6%

59.2%

61.7%

60.9%

62.7%

0.186

 

Active

41.0%

30.4%

40.8%

38.3%

39.1%

37.3%

 

Tumor

Breast

30.5%

33.8%

40.8%

33.0%

33.0%

34.8%

0.719

 

Lung

7.5%

8.3%

5.6%

6.4%

9.8%

10.0%

 
 

Colo-rectal

14.5%

10.8%

12.0%

13.8%

13.5%

11.9%

 
 

Gynaecological

5.0%

5.8%

3.4%

9.0%

4.7%

6.5%

 
 

Nasopharyngeal

13.5%

13.3%

12.5%

13.3%

14.4%

16.4%

 
 

Head & Neck

8.0%

5.8%

5.2%

5.9%

5.1%

7.00%

 
 

Others

21.0%

22.1%

20.6%

18.6%

19.5%

13.4%

 

Self-administered

Yes

76.5%

79.6%

76.8%

75.5%

75.4%

73.1%

0.738

 

No

23.5%

20.4%

23.2%

24.5%

24.7%

26.9%

 

Language

English

57.5%

56.7%

49.8%

51.1%

60.0%

57.2%

0.219

 

Chinese

42.5%

43.3%

50.2%

48.9%

40.0%

42.8%

 
  1. (a) Difference between six questionnaire packages tested by ANOVA for age and Chi-square for categorical variables.