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. Author manuscript; available in PMC: 2022 Jan 12.
Published in final edited form as: Circ Cardiovasc Qual Outcomes. 2021 Jan 12;14(1):e006586. doi: 10.1161/CIRCOUTCOMES.120.006586

Table 1.

Characteristics of Study Participants by Perceived Risk of 30-Day Readmission (N = 730)

Overall (N = 730) Low Perceived Risk ( N = 501) High Perceived Risk (N = 229) P value Missing N (%)
Sociodemographic Characteristics
 Age, median (IQR) 66 (18) 66 (18) 66 (20) 0.354 10 (1.37)
 Female 278 (38.19) 194 (38.88) 84 (36.68) 0.571 2 (0.27)
 Non-white 255 (34.93) 173 (34.53) 82 (35.81) 0.737
 H.S. or less education 104 (14.31) 61 (12.22) 43 (18.86) 0.018 3 (0.41)
 Not currently working 575 (79.09) 381 (76.35) 194 (85.09) 0.007 3 (0.41)
 Insurance status 0.809 6 (0.82)
  Currently insured 662 (91.44) 457 (91.77) 205 (90.71)
  Medicaid only 36 (4.97) 23 (4.62) 13 (5.75)
  Uninsured 26h (3.59) 18 (3.61) 8 (3.54)
Psychosocial Factors
 Marital status 0.975 4 (0.55)
  Currently married 396 (54.55) 270 (54.22) 126 (55.26)
  Never married 95 (13.09) 65 (13.05) 30 (13.16)
  Divorced 141 (19.42) 99 (19.88) 42 (18.42)
  Widowed 94 (12.95) 64 (12.85) 30 (13.16)
 Social support, mean (SD) 16.51 (3.88) 16.66 (3.87) 16.17 (3.90) 0.049 8 (1.10)
 Life stressors, mean (SD) 3.00 (1.97) 2.71 (1.84) 3.64 (2.09) <.001 11 (1.51)
 CES-D symptoms, mean (SD) 7.17 (4.26) 6.71 (4.13) 8.15 (4.37) <.001 15 (2.05)
 Self-efficacy, mean (SD) 9.27 (1.61) 9.35 (1.59) 9.11 (1.65) 0.145 11 (1.51)
 Inadequate health literacy 109 (14.99) 65 (13.03) 44 (19.30) 0.028 3 (0.41)
Behavioral Factors
 Current or past smoker 405 (56.17) 284 (57.49) 121 (53.30) 0.293 9 (1.23)
 Current drinker 286 (39.23) 211 (42.20) 75 (32.75) 0.015 1 (0.14)
 Medication non-adherence 158 (22.35) 103 (21.33) 55 (24.55) 0.338 23 (3.15)
Health-Related Factors
 Poor self-rated health 123 (17.13) 58 (11.76) 65 (28.89) <.001 12 (1.64)
 Any ADL limitations 413 (57.60) 252 (51.12) 161 (71.88) <.001 13 (1.78)
 Body mass index, mean (SD) 30.29 (7.95) 30.37 (7.80)  30.09 (8.27) 0.427 3 (0.41)
 Disease Diagnoses
  Hypertension 331 (45.34) 238 (47.50) 93 (40.61) 0.083 -
  Diabetes 171 (23.42) 121 (24.15) 50 (21.83) 0.493 -
  Heart failure 346 (47.40) 228 (45.51) 118 (51.53) 0.131 -
  Acute MI 107 (14.66) 76 (15.17) 31 (13.54) 0.563 -
  Atrial fibrillation 204 (27.95) 136 (27.15) 68 (29.69) 0.476 -
  Stroke 121 (16.58) 78 (15.57) 43 (18.78) 0.279 -
Healthcare Access and Utilization
 Difficulty accessing care 107 (14.76) 70 (14.00) 37 (16.44) 0.391 5 (0.68)
 Length of stay, median (IQR) 5.19 (6.95) 4.97 (6.70) 5.91 (8.52) 0.048 -
 Any admissions in the past year 319 (43.70) 201 (40.12) 118 (51.53) 0.004 -
30-Day readmission rate 133 (18.22) 79 (15.77) 54 (23.58) 0.011 -

Abbreviations: ADL: Activities of Daily Living; CES-D: Center for Epidemiologic Studies Depression; H.S.: High school; IQR: Interquartile range; MI: Myocardial infarction; SD: Standard deviation.

Note: Categorical variables reported as n (%) and continuous variables reported as mean (SD) or median (IQR)