Table 2.

Factors associated with clinical reflux symptom control after peroral endoscopic myotomy

Variable	Odds ratio	95% confidence interval	P value
Age	1.05	1.01–1.09	0.011
Sex
Female	Ref	Ref	Ref
Male	2.04	0.66–6.28	0.215
Preoperative BMI
Underweight/normal weight (< 18.5–24.9 kg/m2)	Ref	Ref	Ref
Overweight (25.0–29.9 kg/m2)	0.99	0.18–5.30	0.987
Obese (≥ 30 kg/m2)	0.52	0.11–2.43	0.405
Preoperative weight loss
< 5 kg	Ref	Ref	Ref
> 5 kg	7.23	1.59–32.88	0.010
Unknown	1.32	0.56–4.92	0.676
Preoperative symptom length
< 1 year	Ref	Ref	Ref
1–3 years	1.59	0.40–6.25	0.509
≥ 4 years	0.73	0.18–2.96	0.663
Unknown	1.64	0.19–14.01	0.652
Preoperative PPI use
No	Ref	Ref	Ref
Yes	1.17	0.33–4.16	0.804
Unknown	3.00	0.35–25.66	0.317
Preoperative GERD diagnosis
No	Ref	Ref	Ref
Yes	0.74	0.20–2.75	0.655
Myotomy location
Anterior	Ref	Ref	Ref
Posterior	1.89	0.25–14.34	0.539
Unknown	0.15	0.01–2.52	0.189

BMI body mass index, PPI proton pump inhibitor, GERD gastroesophageal reflux disease