Skip to main content

Table 1 The bias parameters for Triangular, Beta and Logit-logistic distributions in control and case groups

From: Effect of alcohol consumption on breast cancer: probabilistic bias analysis for adjustment of exposure misclassification bias and confounders

 

Bias parameters (95% CI)

Group

Triangular distribution: min; max; mode

Beta distribution: alpha; beta

Logit-logistic distribution: location; scale

Type of misclassification

Differential

Sensitivity

65% (41, 89)

Case group

0.41; 0.89; 0.65

9.21; 4.96

0.65; 0.0675

Specificity

93% (80, 100)

0.80; 1; 0.93

46.74; 3.51

0.93; 0.0196

Sensitivity

54% (42, 65)

Control group

0.42; 0.65; 0.54

42.05; 35.82

0.54; 0.0309

Specificity

90% (85, 100)

0.85; 1; 0.90

30.22; 3.36

0.90; 0.0281

Non-differential

Sensitivity

60% (49, 77)

Both groups

0.49; 0.77; 0.60

18.54; 12.36

0.60; 0.0478

Specificity

92% (77, 100)

0.77; 1; 0.92

39.87; 3.47

0.92; 0.0224