Table 3.

Spearman correlation between the subject-specific arithmetic mean and the individual and aggregate ratings by industry and assessment round

Industry/round	Mean correlation (range) based on individual ratersa,b (n = 6)	Correlation (95% CI) based on aggregate ratingsa,c
		Group (n = 6)	Industrial hygienists (n = 3)	Occupational physicians (n = 3)
Foundry (n = 72)
OH  round	0.60 (0.45–0.81)	0.64 (0.48–0.76)	0.66 (0.50–0.77)	0.63 (0.46–0.75)
OH/IQ  round	0.66 (0.56–0.70)	0.77 (0.65–0.85)	0.78 (0.67–0.86)	0.70 (0.56–0.80)
Textile (n = 74)
OH  round	0.41 (0.36–0.46)	0.50 (0.31–0.65)	0.49 (0.30–0.65)	0.47 (0.27–0.63)
OH/IQ  round	0.39 (0.32–0.47)	0.49 (0.30–0.65)	0.45 (0.25–0.62)	0.49 (0.30–0.65)

CI, confidence interval; n, number of subjects.

^aEvaluated across 20 imputed data sets.

^bBased on ordinal scale (1–4).

^cAggregate ratings calculated as the arithmetic mean of the ratings from the specified raters. Based on continuous scale (1–4).