Table 2: Independent and significant correlates of elevated serum urea (>7.5 mmol/L) on admission in older patients with hip fracture.
Variables |
OR |
95%CI |
P value |
CKD |
7.08 |
5.61-8.94 |
<0.001 |
History of MI |
2.25 |
1.46-3.48 |
<0.001 |
PTH>6.8 pmol/L |
1.69 |
1.35-2.12 |
<0.001 |
Anaemia (Hb<120g/L) |
1.45 |
1.15-1.83 |
0.002 |
Gender (male) |
1.63 |
1.25-2.14 |
<0.001 |
Age (year) |
1.02 |
1.00-1.03 |
0.040 |
Abbreviations: CKD, chronic kidney disease (GFR<60 ml/min/1.73m2); MI, myocardial infarction; PTH, parathyroid hormone; Hb, haemoglobin; OR, odds ratio; CI, confidence interval.
Notes: The multivariate logistic regression model included all variables with p≤0.100 on univariate analysis as well as hip fracture type (cervical, trochanteric) and pre-admission use of any diuretics (frusemide, thiazides, spironolactone), angiotensin-converting enzyme inhibitors and angiotensin 2-receptor blockers.