American Association for Cancer Research

Table 5.

Linear modeling results for the association between urinary mutagenicity levels in Salmonella YG1041 +S9 and urinary metabolites (2-NAP, 1-OHP) or wood smoke exposure categories adjusted for smoking (cigarettes/day)

Model	Variable	β (SE)*	95% CI
2-NAP and smoking	2-NAP	0.1417 (0.0479)	0.0470-0.2356
2-NAP and smoking		Smoking	0.0637 (0.0145)	0.0353-0.0922
1-OHP and smoking	1-OHP	0.0856 (0.0383)	0.0105-0.1607
1-OHP and smoking		Smoking	0.0639 (0.0147)	0.0350-0.0928
2-NAP, 1-OHP, and smoking	2-NAP	0.1163 (0.0425)	0.0106-0.2221
		1-OHP	0.0428 (0.0540)	−0.0406-0.1262
		Smoking	0.0632 (0.0145)	0.0348-0.0916
Wood smoke and smoking	Wood smoke (WS) low	0.5415 (0.2531)	0.0455-1.0376
		WS high	1.1912 (0.2505)	0.7002- 1.6822
		Smoking	0.1437 (0.0393)	0.0667- 0.2206
		WS low* smoking^†	−0.0705 (0.0452)	−0.1591- 0.0180
		WS high* smoking^†	−0.1144 (0.0440)	−0.2005- −0.0282

Model	Variable	β (SE)*	95% CI
2-NAP and smoking	2-NAP	0.1417 (0.0479)	0.0470-0.2356
2-NAP and smoking		Smoking	0.0637 (0.0145)	0.0353-0.0922
1-OHP and smoking	1-OHP	0.0856 (0.0383)	0.0105-0.1607
1-OHP and smoking		Smoking	0.0639 (0.0147)	0.0350-0.0928
2-NAP, 1-OHP, and smoking	2-NAP	0.1163 (0.0425)	0.0106-0.2221
		1-OHP	0.0428 (0.0540)	−0.0406-0.1262
		Smoking	0.0632 (0.0145)	0.0348-0.0916
Wood smoke and smoking	Wood smoke (WS) low	0.5415 (0.2531)	0.0455-1.0376
		WS high	1.1912 (0.2505)	0.7002- 1.6822
		Smoking	0.1437 (0.0393)	0.0667- 0.2206
		WS low* smoking^†	−0.0705 (0.0452)	−0.1591- 0.0180
		WS high* smoking^†	−0.1144 (0.0440)	−0.2005- −0.0282

Regression coefficient β and SE with 95% CI; n = 121.

†

Interaction factor between wood smoke and smoking.

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