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Table 2 Characteristics of responders in the ‘opt in’ and ‘opt out’ groups

From: Participant recruitment in sensitive surveys: a comparative trial of ‘opt in’ versus ‘opt out’ approaches

 

‘Opt in’ group responders frequency (%)

‘Opt out’ group responders frequency (%)

Test statistic and p-value

Deceased sex

  

χ2 =0.10, p-value=0.75

Male

72 (41.4)

106 (39.8)

 

Female

102 (58.6)

160 (60.2)

 

Deceased age

  

t=0.31, p-value=0.75

Mean (SD)

80.7 (11.7)

81.1 (12.8)

 

Cause of death

  

χ2 = 0.99, p-value=0.61

CVD

45 (26.0)

61 (23.0)

 

Cancer

69 (39.9)

102 (38.5)

 

Other

59 (34.1)

102 (38.5)

 

Place of death

  

χ2 =0.27, p-value=0.87

Home

29 (16.7)

47 (17.7)

 

Hospital

74 (42.5)

117 (44.0)

 

Care Home/Hospice

71 (40.8)

102 (38.3)

 

Deprivation quintile

  

χ2 =3.57, p-value=0.47

1 (least deprived)

52 (30.1)

68 (25.7)

 

2

40 (23.1)

57 (21.5)

 

3

44 (25.4)

82 (30.9)

 

4

34 (19.7)

48 (18.1)

 

5 (most deprived)

3 (1.7)

10 (3.8)

 

Respondent sex

  

χ2 =0.82, p-value=0.37

Male

52 (31.7)

89 (36.0)

 

Female

112 (68.3)

158 (64.0)

 

Respondent relation to deceased

  

χ2 =0.59, p-value=0.74

Spouse/Partner

42 (25.6)

64 (25.3)

 

Son/daughter

93 (56.7)

151 (59.7)

 

Other

29 (17.7)

38 (15.0)