Table 3. Univariate and multivariate analysis for risk of significant dissection.

	P value	Odd ratio	95% CI
Univariate analysis
Age	0.236	0.968	0.91–1.02
Diabetes	0.319	1.758	0.57–5.33
Occlusion	0.084	6.731	0.77–58.7
MLD	0.896	0.953	0.46–1.97
Minimal calcium	0.294	1.750	0.61–4.98
Severe calcium	0.918	0.933	0.25–3.48
Gradual ballooning	0.637	0.779	0.27–2.19
Balloon to reference vessel ratio	0.242	0.244	0.023–2.59
Oversize ballooning	0.095	0.30	0.073–1.23
Use of atherectomy device	0.005	0.10	0.020–0.494
Multivariate analysis
Occlusion	0.292	3.53	0.33–36.8
Oversize ballooning	0.287	0.42	0.09–2.04
Use of atherectomy device	0.013	0.12	0.025-0.642

MLD: minimal lesion diameter.