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. Author manuscript; available in PMC: 2016 Apr 8.
Published in final edited form as: Aliment Pharmacol Ther. 2010 Apr 7;32(2):171–181. doi: 10.1111/j.1365-2036.2010.04326.x

Table 1.

Patient Demographics

No Year/1st
author/ref.no		 Study population Inclusion
criteria		 Exclusion criteria Total
number
analyzed		 Prep N per
group		 Mean
age		 Male/
Female		 Unable to
complete
prep (%)		 Prep Quality
 Conclusions
Excellent
(%)		 Good
(%)		 Exce /
Good
(%)		 Prep
Quality		 Prep
Completion
1 Vanner 199014 Consecutive patients for elective colonoscopy Polyps 56%, IBD 12%, bleeding 3%, others 29 % Creatinine 2.3 mg/dL, symptomatic CHF, massive ascites, MI within 6 months 102 NaP sol 54 52 30/24 0 26 54 80 NaP better NaP better
4L PEG 48 58 25/23 20 6 27 33
 
2 Kolts 199315 Consecutive outpatients Polyps 45%, GI bleed 32%, anemia 4%, diarrhea 4%, constipation 4%, other 11% Unstable CV status, MI, CVA < 2 mo, creatinine > 2 mg/dL, massive ascites, active IBD, active diverticulitis, delayed gastric emptying 72 NaP sol 34 52 7/27 1 38 41 79 NaP better NaP=PEG
4L PEG 38 58 20/18 5 32 29 61
 
3 Marshall 199329 Consecutive, non-emergent patients Not stated Symptomatic CHF, recent MI, creatinine ≥ 2.3 mg/dL, ascites 143 NaP sol 70 57.2 64/79 for both groups 13 39 30 69 NaP=PEG NaP=PEG
4L PEG 73 57.2 18 47 23 70
 
4 Cohen 199416 Elective colonoscopy; age/sex–matched Not stated Not stated 422 NaP sol 143 66.5 74/69 3 65 25 90 NaP better NaP better
4L PEG 279 66.7 141/138 28 43 25 68
 
5 Golub 1995†36 Consecutive, ambulatory patients matched for age/sex/indication Polyps 62%, bleeding 15%, cancer 13%, family history 3%, other 8% Not stated 230 NaP sol 106 58.4 NA 1 46 43 89 NaP=PEG NaP better
4L PEG 124 58.4 NA 15 48 37 85
 
6 Chia 199531 Elective colonoscopy Not stated > 60 years of age, pregnant, history of renal or cardiac diseases, acute IBD and intestinal obstruction 79 NaP sol 39 47.7 20/19 Not specified Not specified Not specified 85 NaP better NaP=PEG
4L PEG 40 53.2 15/25 63
 
7 Henderson 199532 Outpatient, elective colonoscopies Not stated Symptomatic CHF, recent MI, creatinine > 2 mg/dL, ascites 157 NaP sol 51 51 107/111 for both groups 1 Not specified Not specified 91 NaP=PEG NaP better
4L PEG 106 51 10 92
 
8 Thompson 199628 Outpatient colonoscopy Not stated Ischemic chest pain, MI, TIA/CVA in last 6 months, creatinine > 200 μg/L, ascites, CHF, colostomy, AMS 116 NaP sol 61 72 47/14 3 20 46 66 NaP better NaP better
4L PEG 55 70 38/17 2 15 44 58
 
9 Clarkston 199627 Outpatient colonoscopy Not stated Severe CHF, creatinine ≥ 2.3 mg/dL, prior bowel resection 98 NaP sol 49 57 22/27 4 45 36 81 NaP=PEG NaP=PEG
4L PEG 49 57 12/37 27 31 50 81
 
10 Lee 199926 Consecutive outpatients Not stated Not stated 159 NaP sol 71 51.5 79/80 4 40 31 71 NaP=PEG NaP better
4L PEG 88 57.9 for all 11 43 31 74
 
11 Aronchick 20009 Outpatient colonoscopy Not stated CHF, chronic renal failure, megacolon, severe constipation, partial or subtotal colectomy, or pre-existing electrolyte abnormalities. 206 NaP sol 106 60.3 46/60 1 77 9 86 NaP=PEG NaP better
4L PEG 100 58.8 52/48 12 66 16 82
 
12 Arezzo 200030 Consecutive patients Not stated Not stated 200 NaP sol 100 61.9 45/55 Not specified Not specified Not specified 68 NaP better NaP=PEG
4L PEG 100 60.5 52/48 50
 
13 Seinela 200325 Consecutive patients Age > 80 years Creatinine 2.3 mg/dL, CHF, massive ascites, MI, bowel resection 72 NaP sol 37 84 1o/62 Not specified 48 33 81 NaP=PEG NaP=PEG
4L PEG 35 84 for all 52 26 78
 
14 Law 200424 Elective colonoscopy Age > 18 years Intestinal obstruction, delayed gastric emptying, creatinine >0.2 mmol/L, CHF, MI in the last 6 months, massive ascites and pregnancy. 207 NaP sol 101 58.1 NA Not specified 15 50 65 NaP better NaP better
4L PEG 106 58.1 NA 12 47 59
 
15 Hwang 200523 Elective colonoscopy Not stated Symptomatic CHF, MI, creatinine >1.5 mg/dL, abnormal elevation of transaminases, ileus, bowel obstruction, gastric retention, uncontrolled HTN, unstable angina, pregnancy or breast feeding and severe constipation. 78 NaP sol 38 52.2 18/22 Not specified 58 21 79 NaP=PEG NaP=PEG
4L PEG 40 52.4 25/15 55 28 83
 
16 Bektas 200533 Elective colonoscopy Not stated Creatinine > 2 mg/dL, pregnancy, bowel obstruction, symptomatic CHF, MI in last 3 months, emergent colonoscopy, acute IBD, ascites 97 NaP sol 61 56.7 29/32 Not specified 52 38 90 NaP=PEG NaP better
4L PEG 36 54.3 13/23 47 44 91
 
17 Huppertz-Hauss 200534 Consecutive outpatients for colonoscopy Not stated < 18 years, creatinine> 150mmol/L, CHF, hepatic failure, electrolyte abnormalities, 160 NaP sol 84 58.6 43/41 Not specified Not specified Not specified 85 NaP=PEG NaP=PEG
4L PEG 76 57.4 29/47 81
 
18 Rostom 2006†35 Elective colonoscopy patients 18-80 years old Renal failure, unstable angina, acute coronary syndrome, CHF, ascites, megacolon, bowel obstruction, previous bowel resection and evaluation of diarrhea 194 NaP sol 144 52 39/95 8 Data presented as mean scores NaP better NaP better
4L PEG 50 55 16/34 21

Congestive heart failure-CHF, Myocardial infarction -MI, Acute coronary syndrome-ACS, Hypertension-HTN, Inflammatory bowel diseases-IBD, Altered mental status-AMS, Transient ischemic attack-TIA, Cerebrovascular attack-CVA.

Trials not included in prep completion analysis as there was no data available.

†

Trials not included in prep quality analysis as the data was either presented as mean scores or not available.