Table 1.
Characteristics of US adults by IBD diagnosis.a
| Characteristic | IBDb | Non-IBDc | P value |
|---|---|---|---|
| Age-adjusted %d | Age-adjusted %d | ||
| Sociodemographic variables | |||
| Age group, years | |||
| 18-24 | 4.87 | 12.32 | <.01 |
| 25-44 | 25.57 | 34.27 | |
| 45-64 | 44.67 | 34.10 | |
| ≥65 | 24.89 | 19.32 | |
| Sex | |||
| Female | 62.01 | 51.53 | <.01 |
| Male | 37.99 | 48.47 | |
| Race and ethnicity | |||
| Hispanic | 15.37 | 16.35 | .04 |
| Non-Hispanic Asian | 2.83 | 5.89 | |
| Non-Hispanic Black | 5.86 | 11.96 | |
| Non-Hispanic Other | 2.76 | 2.20 | |
| Non-Hispanic White | 73.18 | 63.60 | |
| Region | |||
| Northeast | 19.66 | 17.69 | .28 |
| Midwest | 23.81 | 22.28 | |
| South | 34.93 | 36.36 | |
| West | 21.60 | 23.67 | |
| Marital status | |||
| Married/cohabitating | 55.44 | 60.53 | .19 |
| Widowed/divorced/separated | 21.27 | 15.88 | |
| Never married | 23.29 | 23.59 | |
| Educational attainment | |||
| Less than high school | 15.26 | 12.21 | .13 |
| High school/GED | 23.29 | 24.56 | |
| Some college/Associate degree | 32.06 | 31.30 | |
| Bachelor’s degree | 18.16 | 20.23 | |
| Master’s/Professional/Doctoral | 11.23 | 11.70 | |
| Employed or working | 54.84 | 63.20 | <.01 |
| Lifestyle factors and comorbidity | |||
| Smoking status | |||
| Current | 18.04 | 15.44 | <.01 |
| Former | 26.04 | 21.04 | |
| Never | 55.92 | 63.52 | |
| Heavy alcohol intakee | 6.14 | 5.11 | .21 |
| Other chronic conditionsf | |||
| None | 36.73 | 52.95 | <.01 |
| 1 | 24.89 | 24.06 | |
| 2–3 | 29.28 | 18.80 | |
| 4+ | 9.10 | 4.19 | |
| Health-care access and utilization | |||
| Health insurance | |||
| Private | 64.38 | 64.56 | .90 |
| Publicg | 21.60 | 19.88 | |
| Other | 5.45 | 4.96 | |
| Uninsured | 8.57 | 10.60 | |
| Trouble finding a health provider | 8.19 | 3.14 | <.01 |
| Emergency room visits | |||
| None | 66.58 | 81.14 | <.01 |
| 1 | 19.82 | 12.14 | |
| 2–3 | 10.05 | 4.84 | |
| 4+ | 3.55 | 1.87 | |
Source: NCHS, National Health Interview Survey, 2015–2016. Abbreviations: IBD, inflammatory bowel disease; NCHS, National Center for Health Statistics
Unweighted total, N = 951; estimated total, N = 3 121 000.
Unweighted total, N = 65 749; estimated total, N = 240 700 000.
Age-adjusted (except for age groups) percentages of total.
Heavy alcohol intake was defined as >14 drinks per week in the past year for males and >7 for females.
Comorbidities included hypertension, coronary heart disease, stroke, arthritis, asthma, cancer, weak or failing kidneys, chronic obstructive pulmonary disease, diabetes, or a liver condition.
Public insurance refers to any Medicaid or Medicare plan.