
| PMC full text: | Published online 2010 Dec 21.   doi:  10.1186/1746-1340-18-34 
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Table 1
Baseline means of demographic, socioeconomic, and geographic variables for nonusers and users of chiropractic| Entire Analytic Sample (N = 5,510) | Nonusers (N = 4,704) | Users (N = 806) | p-value | |
|---|---|---|---|---|
| Demographic Factors | ||||
| Age | 77.4 (5.76) | 77.6 (5.87) | 76.0 (4.87) | < .0001 | 
| Male | 38.1% | 37.8% | 39.7% | 0.319 | 
| Race | ||||
| White | 84.8% | 83.1% | 94.8% | < .0001 | 
| African American | 10.2% | 11.5% | 2.4% | < .0001 | 
| Hispanic | 3.9% | 4.2% | 2.7% | .0413 | 
| Other | 1.1% | 1.2% | 0.2% | < .0064 | 
| Marital Status | ||||
| Married | 50.3% | 48.2% | 62.8% | < .0001 | 
| Never Married | 3.4% | 3.6% | 2.0% | 0.0192 | 
| Separated/Divorced | 5.0% | 5.2% | 3.7% | 0.0697 | 
| Widowed | 41.3% | 43.0% | 31.5% | < .0001 | 
| Socioeconomic Factors | ||||
| Educational Attainment | ||||
| Grade School Only | 25.5% | 26.6% | 19.0% | < .0001 | 
| Some High School | 17.2% | 17.5% | 15.2% | 0.0981 | 
| High School | 30.4% | 29.5% | 35.6% | 0.0005 | 
| Some College | 26.9% | 26.4% | 30.2% | 0.0238 | 
| Income Distribution | ||||
| Income - First Quintile | 15.6% | 16.9% | 8.0% | < .0001 | 
| Income - Second Quintile | 29.9% | 30.9% | 24.0% | < .0001 | 
| Income - Third Quintile | 13.0% | 13.2% | 12.4% | 0.5572 | 
| Income - Fourth Quintile | 18.7% | 17.9% | 23.3% | 0.0003 | 
| Income - Fifth Quintile | 22.7% | 21.0% | 32.2% | < .0001 | 
| One or More Health Insurance Policy | 74.9% | 73.5% | 82.5% | < .0001 | 
| Working for Pay | 8.8% | 8.4% | 11.3% | 0.0007 | 
| Able to Drive a Car | 67.9% | 64.8% | 85.6% | < .0001 | 
| Geographic Location Measures | ||||
| Northeast | 6.1% | 6.4% | 4.5% | 0.0442 | 
| New York/New Jersey | 12.7% | 12.7% | 12.7% | 0.9471 | 
| Mid-Atlantic | 9.1% | 9.5% | 6.6% | 0.0081 | 
| Southeast | 17.2% | 17.5% | 15.2% | 0.1035 | 
| North-Central | 20.6% | 19.8% | 25.2% | 0.0005 | 
| Mid-West | 4.8% | 4.3% | 8.0% | < .0001 | 
| South-West | 10.8% | 11.5% | 7.1% | .0002 | 
| Mountain | 3.2% | 3.4% | 2.0% | 0.0354 | 
| West | 11.4% | 11.2% | 12.9% | 0.1539 | 
| Pacific-Northwest | 3.7% | 3.4% | 5.8% | 0.0009 | 
| Rural | 24.8% | 24.3% | 27.5% | 0.0493 | 
| Distance to Chiropractic College - Far | 62.6% | 62.7% | 62.4% | 0.8651 | 
| Disease History and Comorbidity | ||||
| No Comorbid Conditions | 22.7% | 22.0% | 26.4% | 0.0062 | 
| One Comorbid Condition | 32.5% | 32.2% | 34.1% | 0.3026 | 
| Two Comorbid Conditions | 25.1% | 25.5% | 22.6% | 0.0801 | 
| Three or More Comorbid Conditions | 19.7% | 20.3% | 16.9% | 0.029 | 
| Arthritis Ever | 24.7% | 24.5% | 25.8% | 0.4134 | 
| Cancer Ever | 12.9% | 13.0% | 12.4% | 0.6119 | 
| Heart Condition Ever | 28.9% | 29.6% | 25.0% | 0.0086 | 
| Diabetes Now | 12.4% | 12.8% | 10.3% | 0.0466 | 
| Lung Disease Ever | 9.4% | 9.9% | 6.3% | 0.0009 | 
| Psych Problems Ever | 7.0% | 6.9% | 7.4% | 0.6301 | 
| Hip Fracture Ever | 4.8% | 5.2% | 2.8% | 0.0031 | 
| Hypertension Ever | 45.5% | 46.4% | 40.6% | 0.0021 | 
| Functional Status | ||||
| Bothered by Pain Often | 32.7% | 32.3% | 34.9% | 0.1379 | 
| Difficulty Picking Up a Dime | 8.1% | 8.5% | 6.1% | 0.0205 | 
| Difficulty Lifting 10 Pounds | 32.7% | 34.4% | 22.8% | < .0001 | 
| Difficulty Pushing/Pulling Large Object | 33.8% | 35.2% | 25.5% | < .0001 | 
| Difficulty Climbing Flight of Stairs | 27.9% | 29.6% | 18.5% | < .0001 | 
| Difficulty Walking Several Blocks | 37.4% | 39.2% | 26.8% | < .0001 | 
| Number of ADLs with Difficulty | 0.34(0.84) | 0.38(0.88) | 0.17(0.56) | < .0001 | 
| Number of IADLs with Difficulty | 0.40(0.93) | 0.45(0.97) | 0.14(0.51) | < .0001 | 
| Depressive Symptoms - None | 37.8% | 36.4% | 45.9% | < .0001 | 
| Depressive Symptoms - One to Two | 35.7% | 35.4% | 37.1% | 0.3518 | 
| Depressive Symptoms - Three or More | 26.5% | 28.1% | 16.9% | < .0001 | 
| TICS 7 Score - Zero to Ten | 28.4% | 30.2% | 17.7% | < .0001 | 
| TICS 7 Score - Eleven to Thirteen | 31.7% | 31.3% | 34.7% | 0.056 | 
| TICS 7 Score - Fourteen to Fifteen | 39.9% | 38.5% | 47.7% | < .0001 | 
| Health Lifestyles | ||||
| Never Smoked | 47.9% | 47.7% | 49.5% | 0.3481 | 
| Ever Drink Alcohol | 46.6% | 45.0% | 55.7% | < .0001 | 
| Obese Weight (BMI ≥ 30) | 13.6% | 13.9% | 12.2% | 0.1922 | 
| Over Weight (25 ≤ BMI < 30) | 36.5% | 35.3% | 43.3% | < .0001 | 
| Normal Weight | 46.1% | 46.6% | 43.2% | 0.076 | 
| Under Weight (BMI < 18.5) | 3.8% | 4.2% | 1.2% | < .0001 | 
| Self-Rated Health | ||||
| Excellent | 10.4% | 9.8% | 13.5% | 0.0017 | 
| Very Good | 23.3% | 21.9% | 31.7% | < .0001 | 
| Good | 30.8% | 30.9% | 30.2% | 0.691 | 
| Fair | 23.1% | 24.0% | 18.3% | 0.0003 | 
| Poor | 12.3% | 13.4% | 6.2% | < .0001 | 
| Utilization of Health Services in Prior 12 months | ||||
| Number of Hospitalizations | 22.8% | 23.8% | 17.1% | < .0001 | 
| Number of Physician Visits - One or Less | 24.4% | 24.8% | 22.4% | 0.1411 | 
| Number of Physician Visits - Two to Three | 27.7% | 27.3% | 29.6% | 0.1731 | 
| Number of Physician Visits - Four to Six | 27.8% | 27.6% | 28.9% | 0.4648 | 
| Number of Physician Visits - Seven or More | 20.1% | 20.3% | 19.1% | 0.4471 | 
| Supply of Physicians per 1000 - County level | 2.18(1.74) | 2.23(1.8) | 1.91(1.36) | < .0001 |