Table 2 Univariate and multivariate analysis of patient demographics, procedure-related information and response to questions Q1 to Q6 with patient overall rating

Age

 ≤ 55

312 (96.3%)

12 (3.7%)

0.81

0.38, 1.73

0.589

-

-

-

 > 55

359 (95.5%)

17 (4.5%)

Sex

 Male

314 (96.3%)

12 (3.7%)

0.80

>0.38, 1.71

0.568

-

-

-

 Female

357 (95.5%)

17 (4.5%)

Ethnicity

 Malay

199 (98%)

4 (2%)

 Chinese

276 (95.2%)

14 (4.%)

0.69

0.43, 1.10

0.120

0.61

0.31, 1.19

0.149

 Indian

188 (94.5%)

11 (5.5%)

 Others

8 (100%)

0 (0%)

Education Level

 Primary

110 (95.7%)

5 (4.3%)

 Secondary

287 (96%)

12 (4.0%)

0.98

0.66, 1.46

0.915

-

-

-

 Tertiary

173 (96.1%)

7 (3.9%)

 None

101 (95.3%)

5 (4.7%)

Previous gastroscopy

 Yes

286 (95.7%)

13 (4.3%)

1.09

0.52, 2.31

0.814

-

-

-

 No

385 (96%)

16 (4%)

Duration of gastroscopy

 ≤ 10 minutes

392 (96.3%)

15 (3.7%)

0.76

0.36, 1.61

0.474

-

-

-

 > 10 minutes

279 (95.2%)

14 (4.8%)

-

-

-

Sedation

 Yes

618 (96.4%)

23 (3.6%)

0.33

0.13, 0.84

0.015

0.51

0.12, 2.19

0.368

 No

53 (89.8%)

6 (10.2%)

Midazolam dose

 ≤ 2.5 mg

228 (95.8%)

10 (4.2%)

1.32

0.57, 3.05

0.521

-

-

-

 > 2.5 mg

390 (96.8%)

13 (3.2%)

OAASS

 2 – 4 (moderately sedated)

584 (97.7%)

14 (2.3%)

0.14

0.07, 0.30

<0.001

0.65

0.18, 2.32

0.508

 5 (minimally sedated)

87 (85.3%)

15 (14.7%)

Response for waiting time for appointment

 Favorable

386 (98.7%)

5 (1.3%)

6.50

2.32, 19.67

<0.001

3.73

1.18, 11.9

0.026

 Unfavorable

285 (92.2%)

24 (7.8%)

Waiting time for appointment

 ≤ 4 weeks

251 (95.8%)

11 (4.2%)

1.02

0.48, 2.20

0.954

-

-

-

 > 4 weeks

420 (95.9%)

18 (4.1%)

Response for waiting time at Endoscopy Suite

 Favorable

510 (98.6%)

7 (1.4%)

9.96

3.95, 26.14

<0.001

6.23

1.98, 19.63

0.002

 Unfavorable

161 (88%)

22 (12%)

Waiting time at Endoscopy Suite

 ≤ 1 hour

320 (98.5%)

5 (1.5%)

0.23

0.09, 0.61

0.001

0.63

0.18, 2.18

0.465

 > 1 hour

351 (93.6%)

24 (6.4%)

Response to personal manner of endoscopist

 Favorable

657 (97.5%)

17 (2.5%)

33.13

12.2, 90.69

<0.001

15.15

3.73, 61.58

0.000

 Unfavorable

14 (53.8%)

12 (46.2%)

Response to personal manner of staff/nurses

 Favorable

660 (96.9%)

21 (3.1%)

22.86

7.46, 69.81

<0.001

1.29

0.21, 7.82

0.784

 Unfavorable

11 (57.9%)

8 (42.1%)

Response to explanation given

 Favorable

646 (97%)

20 (3%)

11.36

4.39, 30.38

<0.001

7.40

2.01, 27.32

0.003

 Unfavorable

25 (73.5%)

9 (26.5%)

Response to comfort level during endoscopy

 Favorable

532 (98.7%)

7 (1.3%)

12.03

4.76, 31.66

<0.001

5.41

1.73, 16.90

0.004

 Unfavorable

139 (86.3%)

22 (13.7%)