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Table 4 Concordance of the current job and longest held job, overall and by age

From: Methods and feasibility of collecting occupational data for a large population-based cohort study in the United States: the reasons for geographic and racial differences in stroke study

Classification Overall (n = 4,904)a Age < 65 years (n = 2,777) Age ≥ 65 years (n = 2,127)
κ (95% CI) κ (95% CI) κ (95% CI)
Industry
Simple (20 groups) 0.67 (0.65-0.68) 0.71 (0.70-0.73) 0.60 (0.58-0.62)
Detailed (78 groups) 0.64 (0.63-0.66) 0.69 (0.67-0.71) 0.58 (0.56-0.61)
Occupation
Broad (6 groups) 0.68 (0.67-0.70) 0.73 (0.71-0.75) 0.63 (0.60-0.65)
Simple (22 groups) 0.67 (0.66-0.68) 0.72 (0.70-0.73) 0.61 (0.58-0.63)
Detailed (93 groups) 0.64 (0.63-0.66) 0.70 (0.68-0.71) 0.58 (0.55-0.60)
  1. Abbreviations: κ kappa coefficient, CI confidence interval.
  2. aLimited to participants with known industry and occupation codes for both the current and longest-held jobs, but excludes participants with jobs in the military.