Variablea Overall (n=215) SSC group (n=87) iSSC group (n=128) p
Demographics        
Age (years) 69.4 (± 12.7) 69.0 (± 13.1) 69.6 (± 12.4) 0.73
Male sex 64.7% (139) 70.1% (61) 60.9% (78) 0.17
Weight (kg) 84.3 (± 16.1) 85.8 (± 17.3) 83.4 (± 15.2) 0.29
Body mass index (kg/m2) 29.5 (± 5.2) 29.9 (± 5.6) 29.3 (± 4.9) 0.40
Obesity (BMI>30) 77.2% (166) 77.0% (67) 77.3% (99) 0.96
Metabolic variables  
Diabetes Type 1 3.7% (8) 4.6% (4) 3.1% (4) 0.56
Diabetes Type 2 96.3% (207) 95.4% (83) 96.9% (124) 0.58
Time since diabetes diagnosis (months) 12.4 (± 10.3) 14.9 (± 11.2) 11.1 (± 9.6) 0.03
Admission HbA1c (%) 7.8 (± 1.4) 7.9 (± 1.6) 7.8 (± 1.3) 0.66
Initial blood glucose level (mmol/L) 11.5 (± 4.8) 12.0 (± 5.9) 11.1 (± 4) 0.22
Dyslipidaemia 50.7% (109) 42.5% (37) 56.3% (72) 0.04
Comorbidities and smoking status        
Hypertension 75.8% (163) 78.2% (68) 74.2% (95) 0.57
Chronic renal failure 34.4% (74) 31.0% (27) 36.7% (47) 0.39
Malignancy 16.3% (35) 16.1% (14) 16.4% (21) 0.95
Dementia 8.8% (19) 12.67% (11) 6.3% (8) 0.11
Current or former smoker 55.8% (120) 58.6% (15) 53.9% (69) 0.42
Medication on admission        
Metformin 45.6% (98) 44.8% (39) 46.1% (59) 0.91
Sulfonylurea 32.6% (70) 31.0% (27) 33.6% (43) 0.76
Other oral anti-diabetic agents 16.7% (36) 14.9% (13) 18.0% (23) 0.19
Any insulin 30.7% (66) 29.9% (26) 31.3% (40) 0.83
Total daily insulin dose, U 33.1 (± 19.4) 29.1 (± 19.3) 35.4 (± 19.3) 0.25
Steroid treatment 16.7% (36) 17.2% (15) 16.4% (21) 0.86
Hospital variables        
Cause of hospitalisation
LRTI
Acute cardiac condition

47.4% (102)
52.6% (113)

50.6% (44)
49.4% (43)

45.3% (58)
54.7% (70)

0.49
BMI: Body-Mass Index; LRTI: Lower Respiratory Tract Infection; SD: Standard Deviation
aVariables are expressed as percentage of (number in) study sample or group or as mean [± SD].
Table 2: Baseline characteristics in the overall study sample and according to treatment group.