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. 2022 Mar 21;118(5):949–960. [Article in Portuguese] doi: 10.36660/abc.20210447

Table 1. – Socioeconomic status, clinical characteristics, and health literacy of participants (n=159).

Characteristic Overall (n=159) p*
Sociodemographic      
Age, mean±SD - 62.7±10.1 -
Age, n (%) Less than 65 years old 91 (57.2) 0.07
65 years old or older 68 (42.8)  
Sex, n (%) Male 96 (60.4) <0.001
Female 62 (39.0)  
Missing 1 (0.6)  
Marital status†, n (%) Married 106 (66.7) <0.001
Widower/widow 21 (13.20  
Divorced 18 (11.3)  
Single 13 (8.2)  
Missing 1 (0.6)  
Number of people living in the same household, mean±SD - 2.5±1.2 -
People living alone, n (%) - 26 (16.4) -
Level of education, n (%) Elementary school or less 57 (35.8) 0.07
High school 65 (40.9)  
University degree 37 (23.3)  
Family income†, n (%) Under or equal to 4 minimum wages per month 106 (66.7) <0.001
Between 5 and 10 minimum wages per month 31 (19.5)  
Above 10 minimum wages per month 22 (13.8)  
Change in family income due to the COVID-19 pandemic No change 87 (54.7) <0.001
Lower income 62 (39.0)  
Higher income 6 (3.8)  
Missing 4 (2.5)  
Clinical      
CR referral indication, n (% yes) Coronary Artery Disease 100 (62.9) 0.04
Heart Failure 90 (56.6) 0.10
Myocardial Infarction 87 (54.7) 0.23
Percutaneous Coronary Intervention 84 (52.8) 0.47
Percutaneous Transluminal Coronary Angioplasty 68 (42.8) 0.07
Coronary Artery Bypass Grafting 46 (28.9) <0.001
Peripheral Arterial Disease 11 (6.9) <0.001
Risk factors and comorbidities, n (% yes) Hypertension 107 (67.3) <0.001
Former smoker 85 (53.5) 0.05
Dyslipidemia 70 (44.0) 0.13
Diabetes Type II 37 (23.3) <0.001
Obesity 31 (19.5) <0.001
Stroke 15 (9.4) <0.001
Diabetes Type I 9 (5.7) <0.001
  Cancer 6 (3.8) <0.001
Pacemaker 5 (3.1) <0.001
Taking prescribed medications, n (% yes) - 159 (100.0) -
Duration of participation in CR before the program was closed due to COVID-19, n (% yes) Less than 1 year 35 (22.0) <0.001
More than 1 year 121 (75.1)  
Missing 3 (1.9)  
Literacy levels      
Health literacy, mean±SD   13.2±2.5 -
Health literacy classification‡, n (% yes) Limited health literacy 87 (54.7) <0.001
Marginal health literacy 56 (35.2)  
Adequate health literacy 15 (9.4)  
Missing 1 (0.6)  

CR: cardiac rehabilitation; SD: standard deviation. *Chi-square analyses for categorical variables. †Family income in Brazil is characterized by minimum wages per month. One minimum wage is 1,100.00 BRL or 193.60 USD (April/2021). ‡ Health literacy classification: total scores from 4 to 12 indicate limited health literacy, 13 to 16 marginal health literacy, and 17 to 20 adequate health literacy.