Table 4.

Logistic regression analysis of independent risk factors for unsatisfactory thyroid FNAB pathological results.

Index	B	SE(b)	Wald–χ	P	OR	95% CI
Age	−0.55	0.013	16.64	<0.001	0.95	0.92–0.97
Gender	0.431	0.405	1.132	.287	1.54	0.70–3.41
Nodule size	−0.086	0.225	0.144	0.704	0.918	0.590–1.428
Nodule location	0.373	0.350	1.137	0.286	1.452	0.731–2.884
Nodule blood flow	0.080	0.274	0.086	0.769	1.084	0.634–1.853
Nodular aspect ratio	0.086	0.406	0.045	0.833	1.090	0.492–2.415
Nodule morphology	0.667	0.451	2.187	0.139	1.948	0.805–4.713
Nodule border	−0.663	0.401	2.731	0.098	0.515	0.235–1.131
Nodule calcification	−0.245	0.264	0.861	0.354	0.783	0.466–1.314
TSH level	−0.041	0.149	0.077	0.781	0.960	0.717–1.285
Capillary sampling needles and aspiration methods	0.699	0.196	12.74	<0.001	2.03	1.37–2.99

OR, odds ratio.