The Effectiveness of Short Message Service to Assure the Preparation-to-Colonoscopy Interval before Bowel Preparation for Colonoscopy
Table 2
Basal characteristics of the study population.
Characteristics
No-SMS* group ()
SMS group ()
Total ()
value
Age, y (range)
55.8 ± 12.3 (20–80)
53.7 ± 10.4 (26–77)
54.7 ± 11.4 (20–80)
0.143
Gender (male : female)
63 (46.7) : 72 (53.3)
63 (46.3) : 73 (53.7)
126 (46.5) : 145 (53.5)
0.955
Body mass index, kg/m2 (range)
23.2 ± 2.8 (16–32)
23.6 ± 2.6 (16.7–32.9)
23.4 ± 2.7 (16.0–32.9)
0.210
History of colonoscopy
75 (55.6)
61 (44.9)
136 (50.2)
0.078
Abdominal or pelvic surgery
36 (26.7)
80 (58.8)
116 (42.8)
<0.001
Familial history of colorectal cancer
8 (5.9)
9 (6.6)
17 (6.3)
0.814
Chronic comorbid disease
Diabetes
9 (6.7)
6 (4.4)
15 (5.5)
0.417
Thyroid disease
3 (2.2)
6 (4.4)
9 (3.3)
0.315
Indication of colonoscopy
<0.001
Screening
53 (39.3)
90 (66.2)
143 (52.8)
Surveillance
25 (18.5)
15 (11.0)
40 (14.8)
Symptoms
57 (42.2)
31 (22.8)
88 (32.5)
Symptoms
Rectal bleeding
11 (8.1)
1 (0.7)
12 (4.4)
0.003
Anemia
1 (0.7)
8 (5.9)
9 (3.3)
0.018
Positive stool occult blood
1 (0.7)
0
1 (0.4)
0.315
Significant weight loss
2 (1.5)
0
2 (0.7)
0.154
Abdominal pain/discomfort/bloating
34 (25.2)
14 (10.3)
48 (17.7)
0.005
Change in bowel habits
7 (5.2)
0
7 (2.6)
0.007
Constipation
2 (1.5)
3 (2.2)
5 (1.8)
0.658
Diarrhea
5 (3.7)
5 (3.7)
10 (3.7)
0.991
Mean PC interval†, hour (range)
7:03 ± 1:38 (2:30–13:00)
5:02 ± 2:02 (1:00–9:00)
6:02 ± 2:06 (1:00–13:00)
<0.001
Compliance with diet instructions
108 (80)
120 (88.2)
228 (84.1)
0.064
≥75% of PEG‡ ingested
130 (96.3)
136 (100)
266 (98.2)
0.023
Intubation to cecum
135 (100)
135 (99.3)
270 (99.6)
0.318
Polyp detection rate (%)
37.8
41.2
39.5
0.567
Adenoma detection rate (%)
31.1
30.9
30.1
0.968
Colonoscopy withdrawal time, second (range)
371.3 ± 39.5 (258–491)
379.6 ± 47.7 (258–755)
375.4 ± 44.0 (258–755)
0.119
Values are mean ± standard deviation or number (%). SMS*, short message service of cellular phone; PC interval†, preparation-to-colonoscopy interval; PEG‡, polyethylene glycol.
