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Table 1 Baseline of patient characteristics

From: Difficult colonoscopy score identifies the difficult patients undergoing unsedated colonoscopy

Clinical features

Patients (n = 612)

Age (years)

50.4 ± 14.0

Gender

 

  Male

315 (51.5%)

  Female

297 (48.5%)

BMI(kg/m2)

22.7 ± 3.7

Grade of education

 

  Elementary or below

112 (18.3%)

  High school or above

500 (81.7%)

Marriage status

 

  Single

34 (5.6%)

  Married

578 (94.4%)

Smoking

126 (20.6%)

Drinking

136 (22.2%)

Patients type

 

  Outpatient

486 (79.4%)

  Inpatient

118 (19.3%)

  Emergency

8 (1.3%)

Previous surgery(abdominal and/or pelvic)

162 (26.5%)

Diverticulosis

10 (1.6%)

HAD

2.6 ± 4.4

VAS

1.5 ± 1.4

Symptoms

 

  Constipation

99 (16.2%)

  Abdominal pain

175 (28.6%)

  Diarrhea

98 (16.0%)

  Others

172 (28.2%)

Sleep quality

 

  Excellent or good

534 (87.3%)

  Fair or bad

78 (12.7%)

Indication for colonoscopy

 

  Screening or surveillance

137(22.4%)

  Diagnosis

475(77.6%)

Interval time from appointment to colonoscopy (days)

8.5 ± 6.9

Purgative type

 

  PEG-ELP

550(89.9%)

  SP

62(10.1%)

  1. BMI, body mass index; HAD, Hospital Anxiety and Depression Scale; VAS, Visual Analogue Scale PEG-ELP, polyethylene glycol electrolyte powder; SP, sodium phosphate.