Table 1.

Baseline characteristics at referral

CharacteristicsAll Patients (n=2887)One or More HF Hospitalizations (n=359)No HF Hospitalizations (n=2528)No. Missinga
Demographics
 Age (yr), mean (SD)71 (13)77 (9)70 (14)
 Men, n (%)1625 (56)226 (63)1399 (55)
Physical examination variables, mean (SD)
 Systolic BP (mmHg)136 (21)138 (20)136 (22)230
 Diastolic BP (mmHg)74 (12)71 (10)74 (12)230
Comorbid conditions, n (%)
 Diabetes967 (33)186 (52)781 (31)
 Hypertension1967 (68)279 (78)1688 (67)
 HF582 (20)201 (56)381 (15)
 Occlusive cardiovascular disease1314 (46)259 (72)1055 (42)
 Any cardiovascular disease1496 (52)287 (80)1209 (48)
 Chronic obstructive pulmonary disease471 (16)83 (23)388 (15)
 Cancer1188 (41)156 (43)1032 (41)
 Dementia170 (6)41 (11)129 (5)
Laboratory data
 eGFR (ml/min per 1.732), mean (SD)38 (12)33 (10)38 (12)138
   ≥45, n (%)843 (31)48 (15)795 (33)
   ≥30 and <45, n (%)1109 (40)130 (41)979 (40)
  <30, n (%)797 (29)142 (44)655 (27)
 Urine ACR (mg/g), median (IQR)90 (29–373)96 (38–548)88 (28–367)1479
  <30, n (%)361 (26)33 (21)328 (26)
  30–300, n (%)644 (46)74 (48)570 (45)
  >300, n (%)403 (29)48 (31)355 (28)
 Serum creatinine (mg/dl), mean (SD)1.84 (0.58)1.98 (0.54)1.82 (0.58)138
 Serum calcium (mg/dl), mean (SD)9.44 (0.63)9.38 (0.62)9.45 (0.63)1106
 Serum phosphate (mg/dl), mean (SD)3.79 (0.75)3.98 (0.74)3.76 (0.75)1106
 Serum albumin (g/dl), mean (SD)4.06 (0.45)3.94 (0.46)4.08 (0.45)1106
 Serum bicarbonate (mmol/L), mean (SD)25.66 (3.44)26.07 (3.51)25.61 (3.42)468
 Hemoglobin (g/dl), mean (SD)12.51 (1.85)11.94 (1.76)12.59 (1.84)403
 Serum urea (mg/dl), mean (SD)34.66 (0.45)42.07 (17.41)33.72 (14.75)472
  • IQR, interquartile range.

  • a Number of patients for whom data were missing and imputed for the main analysis (— indicates n=0).