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Table 1 Baseline characteristics

From: Impact of second forward-view examination on adenoma detection rate during unsedated colonoscopy: a randomized controlled trial

Parameter TC group
(n = 195)
SFE group
(n = 197)
P value
Age (year) 46.1 ± 13.2 47.7 ± 12.6 0.639
Sex (male/female) 106/89 107/90 0.398
Weight (kg) 62.6 ± 11.4 63.3 ± 11.8 0.337
Height (cm) 165.2 ± 8.0 164.7 ± 7.5 0.494
BMI (kg/m2) 22.9 ± 3.1 23.2 ± 3.5 0.450
Indication    0.416
 Screening, n (%) 157(80.5) 152(77.2)  
 Surveillance, n (%) 38(19.5) 45(22.8)  
Family history of CRC, n (%) 9(4.6) 13(6.6) 0.394
Previous colonoscopy, n (%) 50(25.6) 64(32.5) 0.136
Diabetes, n (%) 9(4.6) 10(5.1) 0.832
Hypertension, n (%) 25(12.8) 32(16.2) 0.336
Smoking, n (%) 50(25.6) 51(25.9) 0.955
Alcohol, n (%) 53(27.2) 52(26.4) 0.814
Intubation time (min) 6.5 ± 4.1 6.8 ± 3.9 0.613
Withdrawal time (min) 6.5 ± 1.3 6.5 ± 1.9 0.100
Second examination time (min) ND 1.4 ± 0.6 ND
Total duration of colonoscopy (min) 13.0 ± 4.0 14.7 ± 4.8 0.208
Quality of bowel preparation, n    0.884
BBPS 6 40 39  
BBPS 7 54 52  
BBPS 8 65 72  
BBPS 9 36 34  
  1. Data are expressed as the mean ± standard deviation (SD), or percentage
  2. BMI body mass index, BBPS Boston Bowel Preparation Scale score, ND no data, TC group traditional colonoscopy, SFE group second forward-view examination group