Table 1 Pertinent clinical characteristics at the time of hospital admission for patients with and without hypoglycaemia. Data presented are n (%) if not stated otherwise
VariableHypoglycaemiap Value*
Yes (n = 153)No (n = 1100)
Age (years; mean (SD))71.2 (10.9)68.0 (10.9)0.0006
Male gender100 (65.4%)737 (67.0%)0.75
Weight (kg; mean (SD))76.9 (14.3)84.0 (16.2)<0.0001
Height (cm; mean (SD))170.2 (8.7)171.3 (9.2)0.18
BMI (kg/m2; mean (SD))26.5 (4.3)28.6 (4.7)<0.0001
Current smoker32 (21.1%)268 (24.6%)0.39
Diabetes duration (years; mean (SD))10.1 (9.6)7.6 (8.0)0.0039
Previous history
    Myocardial infarction55 (35.9%)368 (33.5%)0.60
    Heart failure39 (25.5%)181 (16.5%)0.011
    Hypertension70 (46.1%)537 (48.8%)0.58
    Bypass surgery14 (9.2%)122 (11.1%)0.57
    Percutanous coronary intervention12 (7.8%)88 (8.0%)1.00
Laboratory findings7.6 (1.8)7.8 (1.8)0.40
HbA1c (%; mean (SD))
    Blood glucose (mmol/l; mean (SD))13.2 (4.6)12.7 (4.5)0.20
    S-Potassium (mmol/l; mean (SD))4.2 (0.6)4.2 (0.5)0.32
    S-Creatinine (mmol/l; mean (SD))110 (42)103 (46)0.10
Blood lipids
    Cholesterol (mmol/l; mean (SD))5.1 (1.2)5.2 (1.3)0.85
    Triglycerides (mmol/l; mean (SD))2.2 (2.2)2.2 (1.9)0.83
Blood pressure (mm Hg; mean (SD))
    Systolic137 (27)134 (25)0.18
    Diastolic76 (16)76 (15)0.83
Killip class
    1104 (68.0%)791 (72.1%)
    233 (21.6%)221 (20.1%)
    313 (8.5%)74 (6.7%)
    43 (2.0%)11 (1.0%)0.32
Pharmacological treatment at admission
    β-blockers57 (37.3%)455 (41.4%)0.38
    Aspirin81 (52.9%)543 (49.4%)0.46
    ACE inhibitor/angiotensin receptor blocker43 (28.1%)347 (31.5%)0.44
    Lipid-lowering32 (20.9%)317 (28.8%)0.047
    Calcium antagonists37 (24.2%)262 (23.8%)0.99
    Diuretics61 (39.9%)335 (30.5%)0.026
Glucose-lowering medication
    Insulin60 (39.2%)391 (35.5%)0.42
    Sulfonylurea61 (39.9%)356 (32.4%)0.082
    Metformin29 (19.0%)284 (25.8%)0.077
Pharmacological treatment at hospital discharge
    β-blockers117 (76.5%)864 (78.5%)0.62
    Aspirin133 (86.9%)907 (82.5%)0.20
    ACE-inhibitor/angiotensin receptor blocker91 (59.5%)688 (62.5%)0.52
    Lipid lowering90 (58.8%)681 (61.9%)0.52
    Calcium antagonists25 (16.3%)182 (16.5%)1.00
    Diuretics74 (48.4%)501 (45.5%)0.57
Glucose lowering medication
    Insulin101 (66.0%)590 (53.6%)0.0048
    Sulfonylurea28 (18.3%)241 (21.9%)0.36
    Metformin18 (11.8%)182 (16.5%)0.16
  • *Fisher’s exact test was performed for dichotomous variables and Killip class (1+2 vs 3+4) and two-sample t test for all continuous variables.