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Table 3 Completeness (%) of selected variables in LIFE-Adult participants and short questionnaire participants by sex and age

From: Evaluating selection bias in a population-based cohort study with low baseline participation: the LIFE-Adult-Study

 

Men

Women

Age, years

40 to 49

50 to 59

60 to 69

70 to 79

40 to 49

50 to 59

60 to 69

70 to 79

School education

 LIFE-Adult participants

100

100

99.9

99.7

100

99.9

99.9

100

 SQ participants

93.8

93.5

93.9

93.9

96.4

95.7

95.1

91.9

Employment

 LIFE-Adult participants

100

99.9

99.6

99.9

100

99.9

99.7

99.9

 SQ participants

95.2

95.5

96.5

97.1

96.9

96.9

97

95.5

Cigarette smoking

 LIFE-Adult participants

97.4

95.3

94.0

89.9

97.8

97.2

95.1

86.8

 SQ participants

95.2

94.7

95.8

96.8

96.4

96.8

94.6

94.0

Physical condition

 LIFE-Adult participants

97.9

96.4

94.4

87.6

98.5

96.6

91.7

85.5

 SQ participants

97.2

96.6

96.8

97.7

97.9

97.5

97.0

95.0

Myocardial infarction

 LIFE-Adult participants

98.7

99.4

98.8

98.6

99.7

99.1

99.6

98.9

 SQ participants

95.8

97.5

96.3

96.5

97.7

97.3

96.9

94.8

  1. Completeness is defined as the number of non-missing data divided by the total number of the sample. Sample 2 of LIFE-Adult participants (see Fig. 1) was used. SQ = short questionnaire