TABLE 1.
Preparation Compliance and Quality Scores for Three Colon Preparations
| Parameter | PEG (n = 1020) | PS (n = 1403) | MC (n = 102) |
|---|---|---|---|
| Patient compliance “taken as directed”a | 948 (93) | 1393 (99) | 100 (98) |
| Residual fluid | |||
| Good (grades 1–2) | 533 (52) | 783 (56) | 37 (36) |
| Poor (grades 3–4) | 487 (48) | 620 (44) | 65 (64) |
| Residual stool | |||
| Good (grades 1–2) | 855 (84) | 1255 (89) | 85 (83) |
| Poor (grades 3–4) | 165 (16) | 148 (11) | 17 (17) |
| Odds ratio less residual fluid (95% CI)b | 1.67 (1.16–2.40) | 1.90 (1.32–2.72) | Reference |
| Odds ratio more residual stool (95% CI)c | 2.2 (1.8–2.6) | Reference | 3.04 (2.03–4.55) |
Note—Data are number with percentage in parentheses. PEG = polyethylene glycol, PS = phosphosoda, MC = magnesium citrate.
a
Phosphosoda was significantly more likely to be taken as directed compared with polyethylene glycol and magnesium citrate (p = 0.01).
b
Polyethylene glycol and phosphosoda were nearly twice as likely to have less residual fluid than magnesium citrate (p < 0.01).
c
Polyethylene glycol and magnesium citrate were more than twice as likely to have more residual stool than phosphosoda (p < 0.01).