Skip to main content
. Author manuscript; available in PMC: 2016 May 10.
Published in final edited form as: JAMA. 2015 Dec 1;314(21):2303–2305. doi: 10.1001/jama.2015.11025

Table 1.

Characteristics of Adults with and without Cerebral Palsy, Ages 18 and Over.

Without CP (n=206,600) With CP (n=1,015) Difference

Weighted Percentage 95% CI Weighted Percentage 95% CI p-value
Independent Variables:
Age, years* 45.38 45.07–45.58 58.19 56.93–59.57 <0.001
Male, %* 51.7 51.4–52.0 65.9 61.6–70.3 <0.001
Weight Status by BMI Category, %
 Underweight (BMI <18.5 kg/m2) 1.7 1.6–1.8 2.0 0.7–2.9 0.861
 Normal Weight (BMI 18.5–24.9 kg/m2) 34.4 34.0–34.9 25.4 21.9–29.0 <0.001
 Overweight (BMI 25–29.9 kg/m2) 34.2 33.8–34.5 31.2 27.7–34.8 0.114
 Obese (BMI>30 kg/m2) 29.7 29.3–30.1 41.4 37.2–45.6 <0.001
Physical Disability Status
 Minor or No Disability 82.0 81.5–82.4 48.7 44.3–53.3 <0.001
 Moderate Physical Disability 4.9 4.7–5.1 8.9 6.7–11.1 <0.001
 Severe Physical Disability 11.3 10.9–11.6 40.6 36.4–44.8 <0.001
Race/ethnicity, %
 Non-Hispanic White* 69.0 67.8–70.1 92.7 90.7–94.7 <0.001
 Non-Hispanic Black* 11.3 10.6–12.0 2.5 1.5–3.7 <0.001
 Hispanic or Mexican American* 13.2 12.4–14.1 2.4 1.5–3.3 <0.001
 Other Race* 6.5 6.0–7.0 2.3 0.9–3.7 <0.001
Type of Insurance, %
 Any private insurance 70.4 69.7–71.1 68.0 63.9–72.1 0.199
 Public insurance only* 14.9 14.5–15.5 28.4 24.9–32.3 <0.001
 No insurance* 14.6 14.1–15.1 3.4 1.9–4.9 <0.001
Geographic Region, %
Northeast* 18.7 17.8–19.7 13.4 9.9–17.0 0.003
Midwest 22.2 21.0–23.3 26.3 22.3–30.3 0.063
South 36.2 34.9–37.6 38.1 33.5–42.7 0.359
West 22.9 21.6–24.1 22.1 18.3–25.9 0.736
MSA, %* 83.1 81.7–84.6 76.1 71.7–80.5 0.002
Good Health, %* 87.1 86.7–87.4 65.5 61.6–69.4 <0.001
Good Mental Health, %* 92.8 92.6–93.1 80.2 77.1–83.2 <0.001
Regular Physical Activity (≥3 Days Per Week) 57.7 57.1–58.3 39.0 35.2–42.7 <0.001
Smoker 20.4 20.0–20.9 19.7 16.4–23.1 0.695

Dependent Variables:
Age-Adjusted Prevalence, %

Diabetes* 6.3 6.1–6.5 9.2 7.4–11.1 <0.001
Asthma* 9.4 9.1–9.7 20.7 17.3–24.2 <0.001
Hypertension* 22.1 21.8–22.4 30.0 26.1–33.5 <0.001
Other Heart Conditions* 9.1 8.9–9.3 15.1 12.9–17.4 <0.001
Stroke* 2.3 2.2–2.4 4.6 3.5–5.7 <0.001
Emphysema* 1.4 1.3–1.5 3.8 2.6–4.9 <0.001
Joint pain* 28.0 27.5–28.5 43.6 39.4–47.7 <0.001
Arthritis* 17.4 17.1–17.7 31.4 28.3–34.5 <0.001

Note: The variables listed are the explanatory variables in the estimated regression models. For all analyses we adjusted data for the clustered and stratified survey design of MEPS, and weighted all estimates using the supplied weight by the Agency for Healthcare Research and Quality (AHRQ).

Note: For race/ethnicity, we considered individuals of any race claiming to be of Hispanic origin as Hispanic or Mexican American. Others were classified as Non-Hispanic black, Non-Hispanic white, or other race, by their responses to the question about race.

Note: Variable-specific nonresponse rates generally ranged from 0–3%. Several variables, including body mass index (BMI), physical disability, physical activity participation, and smoking status showed nonresponse rates in the 5–15% range. For these and all other independent variables, we used a multiple imputation technique to estimate missing values. Five complete sets of data were created to allow for re-estimation of regression models, as well as re-estimation of prevalence of chronic conditions for each complete set of data. Thereafter, average estimates were used in order to incorporate the uncertainty of the missing data into the standard errors. After controlling for missing data and cases with non-positive weights, the final sample sizes for each regression model ranged between 199,048 and 201,801 individuals.

Note: There were no significant differences between adults with CP compared to adults without CP for weighted percentages of marital status, highest levels of education, household income status, or smoking status.

Source: Data comes from the household and condition files of the 2002–2010 Medical Expenditure Panel Survey.