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. 2023 Mar 9;33:102173. doi: 10.1016/j.pmedr.2023.102173

Table 2.

NHANES 1976–80 Ulcerative Colitis Clinical Data.

Ulcerative Colitis No Ulcerative Colitis
n % (95% CI) n % (95% CI) p value
Self-Reported Health Status
 Good, Excellent 96 63.6 (53.7,73.4) 11,528 81.5 (80.0,83.0) <0.01
 Fair, Poor 75 36.5 (26.6,46.4) 3637 18.5 (17.0,20.1) <0.01
Illness Now Affects Digestion/Appetite 63 31.3 (22.0,40.6) 1772 10.5 (9.7,11.3) <0.01
Illness is Colitis 26 13.5 (7.0,20.1) 184 1.0 (0.8,1.2) <0.01
Current Gastrointestinal Symptoms:
Overall GI Symptoms: 94 67.4 (56.8,78.0) 2852 23.2 (22.0,24.4) <0.01
Diarrhea 37 29.5 (20.2,38.9) 638 5.9 (5.2,6.6) <0.01
Constipation 35 15.0 (7.6,23.4) 1820 13.7 (12.4,14.9) 0.73
Detailed Distribution:
Only Diarrhea 34 25.7 (17.1,34.4) 1791 4.2 (3.7,4.8) <0.01
Only Constipation 32 17.0* 585 10.6 (9.7,11.6) n.a.
Both Diarrhea and Constipation 3 1.9 * 146 1.0 (0.8,1.2) n.a.
Neither Diarrhea nor Constipation 67 55.4 (44.0,66.8) 11,666 84.2 (83.0,85.3) <0.01
Loss of Blood Stomach or Bowels 37 26.5 (15.9,37.2) 422 3.5 (3.0,3.9) <0.01
Gray Stools 3 1.9* 83 0.6 (0.4,0.8) n.a.
Melena 25 17.1* 605 4.8 (4.2,5.4) n.a.
Blood-streaked Stools 36 35.2 (24.7,45.7) 618 5.4 (4.9,5.9) <0.01
Overall Medical Therapy: 106 65.2 (54.6,75.8) 5585 36.4 (35.2,37.5) <0.01
Any Current Prescription Medication 115 60.5 (51.1,69.9) 5682 32.3 (31.4,33.3) <0.01
Regular ASA or ASA-Like Med Use 72 38.8 (28.6,49.0) 4118 25.9 (24.8,27.0) 0.02
Diagnosed Anemia 55 44.1 (32.7,55.5) 2190 15.9 (15.0,16.8) <0.01
Had Iron Therapy for Anemia 47 37.2 (24.4,50.0) 1745 12.9 (12.1,13.7) <0.01
Current Anemia Therapy 9 8.4* 276 1.8 (1.6,2.1) n.a.
Overall Hospital Treatment History: 54 36.5 (25.4,44.7) 2443 15.0 (14.2,15.8) <0.01
Hospitalized in Last 12 Months 42 26.3 (16.3,36.2) 2260 13.7 (12.9,14.5) 0.01
Reason is GI Disorder 6 5.0* 72 0.4 (0.2,0.5) n.a.
History of Transfusion 13 11.0* 263 1.9 (1.5,2.2) n.a.
Abdominal Surgery 85 52.7 (38.4,67.1) 4323 35.3 (33.9,36.6) 0.02
Disease Associations
Diagnosis of Arthritis 89 38.7 (28.2,49.2) 3756 20.3 (19.2,21.4) <0.01
Any Cancer Diagnosis 14 5.9* 603 3.4 (3.1,3.7) n.a.
Diagnosis Spastic Colon/Mucous Colitis 54 31.8 (21.9,41.8) 500 3.3 (2.8,3.8) <0.01

Abbreviations: n = sample size; 95 %CI = 95% confidence interval; ASA = aspirin; n.a. = not applicable.

Notes: Mobile exam center interview adult target age range was 25 to 74 years. Item samples sizes vary by data collection location: household interview (15,357); mobile exam center interview (current gastrointestinal symptoms 11,854; physician exam, abdominal surgical scar (11,854). *Variance estimate not statistically reliable.