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Table 1 Percentage agreement and chance-adjusted kappa coefficient (95% confidence interval, CI) between self-reported occupational category* and death certificate records by census-based categories

From: Occupation recorded on certificates of death compared with self-report: the Atherosclerosis Risk in Communities (ARIC) Study

 

Percent Agreement (%)

Kappa Coefficient

95% C.I.

Census-based Categories

   

Managerial/Professional (N§ = 65)

86

0.59

0.54–0.64

Technical/Sales/Administrative (N§ = 53)

85

0.53

0.48–0.58

Service (N§ = 27)

94

0.64

0.60–0.69

Farming/Forestry/Fishing (N§ = 0)

98

_

_

Precision/Production & Craft/Repair (N§ = 47)

89

0.60

0.56–0.65

Operators/Fabricators/Laborers (N§ = 52)

89

0.62

0.57–0.67

Homemakers (N§ = 43)

92

0.68

0.64–0.73

  1. * Grouped in categories following the 1980 Bureau of Census categories: Managerial and professional specialty; Technical, sales, and administrative support; Service; Farming, forestry and fishing; Precision production, craft, and repair; Operators, fabricators, and laborers; Homemakers.
  2. § N indicates the number of participants that had the same category on both sources.
  3. Only five farming/forestry/fishing were self-reported and only three were recorded on death certificates (none one recorded on both sources).