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. 2020 Apr 15;22(4):e15682. doi: 10.2196/15682

Table 2.

Chronic conditions among baseline and follow-up survey respondents.

Chronic conditions Values

n (%)a Mean (SD) Median (IQR)
Number of chronic conditions
4.1 (2.3) 4 (2-5)

0-3 297 (38.9)

4-6 339 (44.4)

7-14 128 (16.8)
Conditionsb

Acid-related diseases 181 (23.7) -c -

Alzheimer or Dementia 19 (2.5) - -

Arthritis 153 (20) - -

Asthma 43 (5.6) - -

Cancer 85 (11.1) - -

Chronic obstructive pulmonary disease 121 (15.8) - -

Diabetes 195 (25.5) - -

Heart failure 61 (8.0) - -

HIV or AIDS 4 (0.5) - -

Headache 97 (12.7) - -

Hepatitis C 30 (3.9) - -

Hypertension 394 (51.6) - -

Ischemic heart disease 114 (14.9) - -

Low back pain 279 (36.5) - -

Multiple sclerosis 17 (2.2) - -

Parkinson disease 25 (3.3) - -

Peripheral vascular disease 50 (6.5) - -

Prostatic hyperplasia 74 (9.7) - -

Renal disease 54 (7.1) - -

Spinal cord injury 62 (8.1) - -

Stroke 42 (5.5) - -

Traumatic brain injury 34 (4.5) - -
Mental health conditions

Any mental health condition 561 (73.1) - -

Number of mental health conditions - 1.3 (1.1) 1 (0-2)

Substance use disorderd 121 (15.9) - -


Alcohol abuse or dependence 90 (11.8) - -


Drug use or dependence 63 (8.2) - -

Schizophrenia 21 (2.7) - -

Bipolar disorder 50 (6.5) - -

Depression 389 (50.9) - -

Post-traumatic stress disorder 348 (45.5) - -

an (%) represents the unadjusted number of survey respondents; weighted differences are available in Multimedia Appendix 2.

bConditions have been adapted from a list developed by the VA Health Economics Research Center [47].

cNot applicable.

dSubstance use includes alcohol and any drug abuse or dependence diagnosis; individual and combined rates are shown.