Development of a new sternal dehiscence prediction scale for decision making in sternal closure techniques after cardiac surgery

Table 3 Risk factors for sternal instability (multivariate analysis) (n = 7173)

Factor	Preoperative evaluation
Factor	OR	(95% CI)	P-value
Re-exploration	6.61	(4.51–9.54)	< 0.001
BMI ≥35 kg/m²	4.23	(2.46–7.34)	< 0.001
IDDM	2.24	(1.50–3.29)	0.010
Smoker (within 2 months preop.)	2.03	(1.32–3.08)	0.001
Age > 60 y	1.77	(1.19–2.72)	0.007
BMI ≥25–35 kg/m²	1.66	(1.09–2.62)	0.022
Male gender	1.56	(1.00–2.37)	0.030
Previous cardiac OP	0.60	(0.36–0.95)	0.037
Smoker (former)	1.44	(1.44–2.08)	0.051
COPD	1.53	(0.97–2.33)	0.059
Cardiogenic shock (< 48 h preop.)	0.38	(0.09–1.07)	0.112
Priority: emergency	1.48	(0.89–2.39)	0.117
NIDDM	1.36	(0.91–1.99)	0.126
OP Duration > 5 h	1.38	(0.86–2.15)	0.163
Renal impairment (all stages)	1.42	(0.58–2.98)	0.398
Priority: urgent	1.08	(0.77–1.51)	0.649
Cardiogenic shock (< 3 weeks preop.)	0.79	(0.13–2.63)	0.740

OR Odds ratio, CI Confidence intervall, BMI Body mass index, IDDM Insulin-dependent diabetes mellitus, COPED Chronic obstructive pulmonary disease, NIDDM Non-insulin-dependent diabetes mellitus

ISSN: 1749-8090