Table 1.
Patient demographics
| Total (%) | New MC (%) | MC Registry (%) | p-vala | All MC (%) | No MC (%) | p-valb | |
|---|---|---|---|---|---|---|---|
| Number of patients | 198 | 21 (10.61) | 59 (29.80) | 80 (40.40) | 118 (59.60) | ||
| Female | 140 (70.71) | 16 (76.19) | 49 (83.05) | 0.49 | 65 (81.25) | 78 (66.10) | 0.01 |
| Race/ethnicity | |||||||
| Caucasian | 179 (90.140) | 18 (85.71) | 57 (96.61) | 0.14 | 75 (93.75) | 104 (88.14) | 0.24 |
| Hispanic | 5 (2.53) | 2 (9.52) | 1 (1.69) | 3 (3.75) | 2 (1.63) | ||
| African American | 4 (2.02) | 0 (0.00) | 1 (1.69) | 1 (1.25) | 3 (2.54) | ||
| Asian | 4 (2.02) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 4 (3.25) | ||
| Other/unknown | 6 (3.03) | 1 (4.76) | 0 (0.00) | 1 (1.25) | 5 (4.07) | ||
| Age (years), Mean ± Standard deviation | 57.55 ± 15.27 | 59.05 ± 15.04 | 60.86 ± 14.42 | 0.63 | 60.38 ± 14.51 | 55.62 ± 15.53 | 0.03 |
| Smoking status | |||||||
| Current | 20 (10.10) | 2 (9.52) | 10 (16.95) | 0.70 | 12 (15.00) | 8 (6.78) | 0.13 |
| Former | 68 (34.34) | 8 (38.10) | 22 (37.29) | 30 (37.50) | 38 (32.20) | ||
| Never | 109 (55.05) | 11 (52.38) | 27 (45.76) | 38 (47.50) | 71 (60.20) | ||
| History of celiac disease | 2 (1.01) | 0 (0.00) | 1 (1.69) | 1.00 | 1 (1.22) | 1 (0.85) | 0.78 |
| Diagnosis | |||||||
| Collagenous colitis | 6 (28.57) | 14 (23.73) | 0.66 | 20 (25.00) | – | – | |
| Lymphocytic colitis | 15 (71.43) | 45 (76.27) | 60 (75.00) | – |
Demographic characteristics are listed, first comparing patients with newly diagnosed microscopic colitis (MC) at colonoscopy and those obtained from the MC registry (p-vala), followed by all MC patients compared to diarrheal controls negative for MC on colonoscopy (p-valb)