Table 2.

Relationship between the observed and expected prevalence of co-occurring pairs of chronic health conditions. (Color table online)

All results are given in percentages. The shaded bar depicts the prevalence of each chronic health condition. In the matrix, the first value for each pair is the observed frequency, while the second (italic) is the expected one after multiplying the respective prevalence of each disorder. (Chi-square tests were used to determine whether observed frequencies were significantly different from expected frequencies. All p values were inferior to 5%.)

LBP low back pain, HTA hypertension, UBP upper back pain, UI urinary incontinence, COPD chronic obstructive pulmonary disease, CKD chronic kidney disease, CHD coronary heart disease, MI previous myocardial infarction, and LC liver cirrhosis