Table 2.

Logistic regression analysis between DCP with kidney stone prevalence.

Characteristic	Model 1 OR (95% CI)	Model 2 OR (95% CI)	Model 3 OR (95% CI)
2,5-Dichlorophenol (0.1ug/ml)	1.01 (1.00, 1.01)	1.01 (1.00, 1.01)	1.01 (1.00, 1.01)
Stratified by age
20–39	0.95 (0.87, 1.05)	0.97 (0.90, 1.06)	0.98 (0.90, 1.06)
40–70	1.01 (1.00, 1.02)	1.01 (1.00, 1.02)	1.01 (1.00, 1.02)
Stratified by race
Mexican American	1.00 (0.98, 1.02)	1.00 (0.98, 1.02)	1.00 (0.98, 1.03)
White	1.01 (0.96, 1.06)	1.01 (0.96, 1.06)	1.01 (0.97, 1.07)
Black	1.01 (1.00, 1.02)	1.01 (1.00, 1.02)	1.01 (1.00, 1.02)
Other race	1.00 (0.89, 1.11)	0.98 (0.87, 1.12)	0.97 (0.84, 1.11)
2,4-Dichlorophenol (0.1ug/ml)	1.21 (0.96, 1.52)	1.28 (1.01, 1.61)	1.27 (1.01, 1.61)
Stratified by age
20–39	0.06 (0.00, 5.71)	0.13 (0.00, 9.69)	0.13 (0.00, 11.64)
40–70	1.26 (0.98, 1.61)	1.31 (1.03, 1.68)	1.33 (1.03, 1.70)
Stratified by race
Mexican American	0.82 (0.28, 2.42)	0.79 (0.23, 2.66)	0.84 (0.25, 2.87)
White	0.88 (0.09, 8.80)	0.83 (0.08, 8.96)	0.88 (0.05, 14.17)
Black	1.36 (1.04, 1.77)	1.35 (1.04, 1.75)	1.35 (1.01, 1.80)
Other Race	1.07 (0.03, 44.28)	0.68 (0.01, 64.86)	0.27 (0.00, 52.93)

Model 1 was adjusted for no covariates;

Model 2 was adjusted for age, race, marital status and education;

Model 3 was adjusted for adjusted for all covariates except effect modifier.

Bold text indicates the result is significant in model3.