Table 1

Demographic characteristics of respondents by condition

Short

Long

χ2, pval

Total


Demographic

$3

$5

$3

$5

Age, median (range)

68

(28-93)

68

(29-97)

66

(27-95)

66

(32-94)

67

(27-97)

Female, %

50.5%

53%

48%

50%

1.43, p < .70

50.5%

White race, %

88.8%

90.9%

91.6%

87.8%

25.09, p < .57

89.8%

Hispanic ethnicity, %

1.4%

1.4%

2.3%

1.7%

21.17, p < .27

1.9%

Married, %

62.2%

61.5%

65%

62.4%

13.91, p < .53

62.8%

Stage

1, %

19.9%

18.8%

21.6%

15.8%

11.97, p < .45

19%

2, %

45%

50%

50%

48%

48%

3, %

13.5%

13%

10%

18%

14%

4, %

9.4

7.4

6.8

7.3

7.7%


a N = 1150

Kelly et al. BMC Medical Research Methodology 2010 10:65   doi:10.1186/1471-2288-10-65

Open Data