Table 1 Demographics and blood chemistry of patients undergoing elective hip replacement surgery
Parameter | Insulin resistance* (n = 26) | No insulin resistance (n = 26) | Univariate statistics |
|---|---|---|---|
Age (years) | 66 ± 10 | 70 ± 9 | NS |
Body weight (kg) | 90 ± 16 | 75 ± 11 | P < 0.001 |
Female / male (N) | 15 / 11 | 20 / 6 | NS |
Placebo / water / nutrition (N) | 10 / 8 / 8 | 10 / 7 / 9 | NS |
Preoperative blood chemistry | |||
Plasma glucose (mmol/l) | 5.0 ± 0.4 | 5.1 ± 0.7 | NS |
Plasma insulin (pmol/l) | 61 (33–99) | 29 (24–43) | P < 0.003 |
Insulin sensitivity (μmol/min/kg) | 19 (9–24) | 41 (36–46) | P < 0.001 |
Blood hemoglobin (g/L) | 137 ± 10 | 130 ± 12 | P < 0.05 |
Postoperative blood chemistry** | |||
Plasma glucose (mmol/l) | 5.9 ± 1.2 | 5.7 ± 1.0 | NS |
Plasma insulin (pmol/l) | 57 (42–73) | 26 (18–50) | P < 0.002 |
Insulin sensitivity (μmol/min/kg) | 11 (2–18) | 21 (13–34) | P < 0.003 |
Blood hemoglobin (g/L) | 103 ± 16 | 102 ± 13 | NS |