Table 1.
Demographic characteristics and numeracy
| Totaln = 187 | Numeracy Score |
Pa | ||||
|---|---|---|---|---|---|---|
| 0n = 35 | 1n = 61 | 2n = 57 | 3n = 34 | |||
| Demographics | ||||||
| Age | 52.0 (14.8) | 55.3 (11.9) | 53.4 (15.0) | 49.3 (15.1) | 50.7 (16.2) | 0.2 |
| Gender | 0.05 | |||||
| Female | 71 | 16 (22.5) | 27 (38.0) | 22 (31.0) | 6 (8.5) | |
| Male | 116 | 19 (16.4) | 34 (29.3) | 35 (30.2) | 28 (24.1) | |
| Race | <0.001 | |||||
| African American | 68 | 24 (35.3) | 20 (29.4) | 17 (25.0) | 7 (10.3) | |
| Non-African American | 119 | 11 (9.2) | 41 (34.5) | 40 (33.6) | 27 (22.7) | |
| Employment Status | <0.001 | |||||
| Student/employed | 52 | 3 (5.8) | 13 (25.0) | 18 (34.6) | 18 (34.6) | |
| Unemployed | 135 | 32 (23.7) | 48 (35.6) | 39 (28.9) | 16 (11.9) | |
| Educational Level | 0.06b | |||||
| 12th grade education or greater | 157 | 26 (16.6) | 49 (31.2) | 50 (31.9) | 32 (20.4) | |
| Less than 12th grade education | 30 | 9 (30.0) | 12 (40.0) | 7 (23.3) | 2 (6.7) | |
| Tobacco Use | 0.6b | |||||
| Active smoker | 25 | 7 (28.0) | 7 (28.0) | 8 (32.0) | 3 (12.0) | |
| Former/nonsmoker | 162 | 28 (17.3) | 54 (33.3) | 49 (30.2) | 31 (19.1) | |
| Medical Comorbidities | ||||||
| Diabetes | 74 | 19 (25.7) | 26 (35.1) | 20 (27.0) | 9 (12.2) | 0.07 |
| Nondiabetic | 113 | 16 (14.2) | 35 (31.0) | 37 (32.7) | 25 (22.1) | |
| History of stroke | 18 | 5 (27.8) | 5 (27.8) | 6 (33.3) | 2 (11.1) | 0.7b |
| No history of stroke | 169 | 30 (17.8) | 56 (33.1) | 51 (30.2) | 32 (18.9) | |
| Coronary artery disease | 44 | 8 (18.2) | 15 (34.1) | 13 (29.5) | 8 (18.2) | 0.9 |
| No history of coronary artery disease | 143 | 27 (18.9) | 46 (32.2) | 44 (30.8) | 26 (18.2) | |
| History of depression | 26 | 7 (26.9) | 9 (34.6) | 7 (26.9) | 3 (11.5) | 0.4 |
| No history of depression | 161 | 28 (17.4) | 52 (32.3) | 50 (31.1) | 31 (19.3) | |
| Renal Disease | 0.4 | |||||
| CKD stage 4 to 5 | 75 | 13 (17.3) | 24 (32.0) | 20 (26.7) | 18 (24.0) | |
| ESRD | 112 | 22 (19.6) | 37 (33.0) | 37 (33.0) | 16 (14.3) | |
| Duration of follow-upc (years) n = 187 | 2.88 (1.03) | 2.87 (1.01) | 2.71 (1.04) | 3.01 (1.06) | 2.98 (1.00) | 0.4 |
| Dialysis vintaged (years) n = 112 | 2.26 (2.06) | 2.94 (2.51) | 2.47 (2.03) | 2.08 (1.90) | 1.27 (1.48) | 0.09 |
| Labs | ||||||
| Hemoglobin (g/dl) | 11.75 (1.3) | 11.3 (1.3) | 11.7 (1.4) | 11.8 (1.3) | 12.3 (1.2) | 0.03 |
| Albumin (g/dl) | 3.80 (0.46) | 3.55 (0.58) | 3.79 (0.43) | 3.94 (0.40) | 3.85 (0.39) | 0.002 |
| Phosphorus (mg/dl) | 5.05 (1.3) | 5.28 (1.15) | 4.94 (1.14) | 5.27 (1.48) | 4.67 (1.25) | 0.1 |
| Creatininee (mg/dl) n = 75 | 4.3 (1.6) | 5.1 (1.3) | 3.9 (1.6) | 4.8 (1.6) | 3.9 (1.6) | 0.052 |
| estimated GFRe (ml/min per 1.73 m2) n = 75 | 17.6 (8.3) | 13.0 (4.0) | 19.8 (10.1) | 15.1 (5.3) | 21.1 (8.7) | 0.01 |
Continuous variables are presented as means with standard deviations. Categorical variables are expressed as frequencies and percentages.
a
Chi-square or analysis of variance were used as appropriate.
b
Fisher exact test.
c
Duration of follow-up: Elapsed time from date of study enrollment to last assessment of kidney transplant status.
d
For ESRD patients only.
e
For nondialysis-dependent CKD patients.
Numeracy score represents the total number of correct answers on the three-item test.
Hemoglobin in g/dl can be converted to g/L by multiplying by 10.
Albumin in g/dl can be converted to g/L by multiplying by 10.
Phosphorus in mg/dl can be converted to mmol/L by multiplying by 0.3229.