A Review of Exposure Assessment Methods in Epidemiological Studies on Incinerators

Table 2

Evaluation of the agreement between concentration maps and other exposure assessment methods. Quadratic weighted Cohen’s kappa and percentages of subjects classified in the same exposure class or in different classes.

Comparison exposure	Weighted kappa^a	Matching subjects	Misclassification in adjacent categories	Misclassification in >1 class apart
ADCO versus ADDE	0.91	69.6%	29.3%	1.1%
ADCO versus CBCO	0.97	89.2%	10.5%	0.3%
ADCO versus CBDE	0.90	70.0%	27.8%	2.2%
ADCO versus ADDI1	0.61	38.9%	45.1%	16.0%
ADCO versus CBDI	0.60	40.2%	44.5%	15.3%
ADCO versus ADDI2	0.35	25.4%	39.8%	34.8%

ADCO: address concentration (quintiles), ADDE: address deposition (quintiles), CBCO: census block concentration (quintiles), CBDE: census block deposition (quintiles), ADDI₁: address distance (quintiles), ADDI₂: address distance (regular 800 m buffers), CBDI: distance between census block centroid and incinerator. ^aall kappa with 𝑃<0.001.