Baseline characteristics of the patients with doctor’s diagnosis of diabetes, patients with screening diabetes and patients without diabetes
| Doctor’s diagnosis of diabetes (N=23) | Screening diabetes (N=20) | No diabetes (N=110) | p Value | |
|---|---|---|---|---|
| Age, years | 64.4 (59.1 to 69.9) | 68.8 (64.8 to 72.8) | 64.3 (61.3 to 67.2) | 0.43 |
| Male gender | 52% | 70% | 51% | 0.29 |
| Family history of diabetes | 62% | 44% | 33% | 0.037 |
| Waist circumference (cm) | 113 (108 to 119) | 104 (99 to 109) | 104 (101 to 107) | 0.013 |
| BMI (kg/m2) | 34.2 (31.6 to 36.9) | 28.8 (25.9 to 31.7) | 28.6 (27.3 to 30.0) | 0.002 |
| HbA1c (%) | 7.53 (6.89 to 8.17) | 7.00 (6.65 to 7.36) | 5.81 (5.73 to 5.88) | <0.001 |
| Peak fasting glucose value (mmol/L) | 12.6 (10.6 to 14.6) | 10.5 (8.43 to 12.5) | 8.10 (7.72 to 8.47) | <0.001 |
| Peak postprandial glucose value (mmol/L) | 17.7 (15.1 to 20.3) | 14.0 (11.8 to 16.2) | 11.6 (11.2 to 12.1) | <0.001 |
| Presence of COPD | 9% | 60% | 26% | 0.001 |
| Ever smoking | 52% | 90% | 59% | 0.018 |
| Karnofsky score <90% | 48% | 65% | 44% | 0.21 |
| Admission oxygen saturation (%) | 94.2 (92.3 to 96.0) | 89.3 (86.6 to 92.0) | 92.1 (91.0 to 93.2) | 0.013 |
| Urea (mmol/L) | 7.83 (5.93 to 9.73) | 8.12 (5.84 to 10.4) | 6.32 (5.69 to 6.95) | 0.049 |
The data are presented either as percentage of patients showing the feature or means (95% CIs).
BMI, body mass index; COPD, chronic obstructive pulmonary disease; HbA1c, glycosylated haemoglobin expressed as percentage of total haemoglobin.