Gene polymorphisms associated with sudden decreases in heart rate during extensive peritoneal lavage with distilled water after gastrectomy

Table 12 Analysis of interaction between rs820196 genotype and smoking in patients with heart rate variability ≥ 30% and < 30%

Smoking	rs820196 genotype	HRV ≥ 30% (n = 22)	HRV < 30% (n = 170)	OR (95%CI)	P value
No	TT	6 (7.89)	70 (92.11)	1.00 (Reference)	-
Yes	TT	1 (9.09)	10 (90.91)	1.47 (0.15, 14.27)	0.74
No	TC	13 (19.70)	53 (80.30)	2.91 (1.03, 8.20)	0.04a
Yes	TC	1 (5.26)	18 (94.74)	0.80 (0.088, 7.36)	0.85
No	CC	1 (5.88)	16 (94.12)	0.81 (0.089, 7.35)	0.85
Other		0 (0.00)	3 (100.00)	-	-

^aP < 0.05 vs nonsmokers with the rs820196 TT.

Logistic regression analyses adjusting for age, gender, hypertension, and thyroid function. HRV: Heart rate variability; OR: Odds ratio; CI: Confidence interval.