Table 3.

Subgroup analysis between three aldehydes and kidney stones.

Aldehydes	Subgroups	Model1OR (95% CI)	Model2OR (95% CI)	Model3OR (95% CI)
Isopentanaldehyde (ng/mL)	Stratified by sex
	Male	1.62 (0.98, 2.66)	1.98 (1.15, 3.40)	1.73 (0.59, 5.08)
	Female	1.52 (0.81, 2.85)	1.51 (0.77, 2.95)	3.69 (0.96, 14.22)
	Stratified by race
	Mexican American	1.67 (0.38, 7.38)	1.11 (0.21, 5.79)	0.26 (0.01, 5.11)
	White	1.44 (0.92, 2.26)	1.63 (1.00, 2.66)	5.08 (1.83, 14.09)
	Black	2.15 (0.74, 6.24)	2.12 (0.72, 6.21)	0.00 (0.00, Inf)
	Other	0.29 (0.00, 21.72)	0.32 (0.00, 22.89)	0.00 (0.00, Inf)
	Stratified by age
	AGE <50	1.75 (1.04, 2.94)	1.33 (0.76, 2.33)	5.38 (1.39, 20.78)
	AGE ≥50	1.87 (0.99, 3.50)	2.13 (1.08, 4.22)	2.53 (0.68, 9.47)
	Total	1.79 (1.20, 2.68)	1.70 (1.12, 2.56)	2.68 (1.23, 5.81)
Benzaldehyde(ng/ml)	Stratified by sex
	Male	1.00 (0.75, 1.35)	1.06 (0.79, 1.42)	1.00 (0.72, 1.38)
	Female	1.13 (1.03, 1.22)	1.13 (1.03, 1.23)	1.15 (1.04, 1.28)
	Stratified by race
	Mexican American	1.03 (0.82, 1.29)	1.07 (0.83, 1.36)	1.00 (0.74, 1.35)
	White	1.11 (1.01, 1.23)	1.14 (1.03, 1.27)	1.13 (1.01, 1.27)
	Black	1.34 (0.92, 1.94)	1.36 (0.91, 2.03)	1.00 (0.33, 3.00)
	Other	0.93 (0.36, 2.36)	0.92 (0.35, 2.37)	36.48 (0.00, Inf)
	Stratified by age
	AGE <50	1.10 (0.99, 1.22)	1.09 (0.98, 1.22)	1.07 (0.95, 1.22)
	AGE ≥50	1.12 (0.98, 1.27)	1.20 (1.03, 1.40)	1.15 (0.97, 1.36)
Hexanaldehyde(ng/ml)	Stratified by sex
	Male	0.98 (0.71, 1.37)	1.07 (0.78, 1.47)	1.16 (0.78, 1.71)
	Female	1.15 (0.92, 1.43)	1.15 (0.96, 1.37)	1.27 (1.03, 1.56)
	Stratified by race
	Mexican American	0.77 (0.37, 1.59)	0.75 (0.33, 1.68)	1.40 (0.34, 5.82)
	White	1.16 (0.96, 1.41)	1.19 (0.98, 1.44)	1.21 (0.96, 1.54)
	Black	0.76 (0.36, 1.61)	0.73 (0.34, 1.55)	0.00 (0.00, Inf)
	Other	1.14 (0.89, 1.47)	1.15 (0.89, 1.47)	22.91 (0.00, Inf)
	Stratified by age
	AGE <50	1.18 (0.92, 1.52)	1.16 (0.95, 1.41)	1.10 (0.87, 1.40)
	AGE ≥50	1.01 (0.76, 1.35)	1.05 (0.79, 1.39)	1.18 (0.84, 1.65)

The subgroup analysis was stratified by gender race and age.