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Table 1 Patient demographics and clinical characteristics

From: From laparoscopic to robotic-assisted Heller myotomy for achalasia in a single high-volume visceral surgery center: postoperative outcomes and quality of life

Groups characteristics

RAL

N = 11

LSC

N = 32

P

Median age, years (IQR)

60.5 (48.3–68.9)

54.9 (47.1–66.3)

0.351

Female gender, n (%)

6 (54.5)

9 (28.1)

0.117

BMI, kg/m2 (IQR)

23.1 (21.0–25.5)

23.7 (21.0–27.1)

0.802

ASA score

 • I, n (%)

3 (27.3)

9 (28.1)

0.052

 • II, n (%)

3 (27.3)

19 (59.4)

 • III, n (%)

5 (45.5)

4 (12.5)

Smoking

 • Never, n (%)

9 (81.8)

21 (65.6)

0.574

 • Former, n (%)

1 (9.1)

7 (21.9)

 • Active, n (%)

1 (9.1)

4 (12.5)

Achalasia type

 • I, n (%)

2 (18.2)

10 (34.5)

0.180

 • II, n (%)

9 (81.8)

15 (51.7)

 • III, n (%)

0

4 (13.8)

Preoperative symptoms

 • Dysphagia, n (%)

11 (100.0)

31 (96.9)

0.898

 • Weight loss, n (%)

2 (18.2)

10 (34.5)

 • Pneumonia, n (%)

1 (9.1)

2 (6.2)

Endoscopic dilation before surgery, n (%)

1 (9.1)

6 (18.8)

0.459

  1. Values are presented as median with interquartile range (IQR) or absolute number with percentage in parentheses
  2. ASA American society of anesthesiology, BMI: body mass index