Table 4.

Multivariable logistic regression analysis of parameters significantly associated with all histological types of thyroid cancer, papillary thyroid cancers, papillary thyroid microcarcinoma and Hürthle cell thyroid cancer in 2843 patients who had total or near-total thyroidectomy

	All thyroid cancers		All papillary thyroid cancers*		Papillary thyroid microcarcinoma		Hürthle cell cancer
	OR	P	OR	P	OR	P	OR	P
Age		0.100	0.99 (0.99, 1.00)	0.026		0.262	1.03 (1.01, 1.05)	0.017
Sex	0.53 (0.42, 0.66)	< 0.0001	0.53 (0.41, 0.69)	<0.001		0.178		0.265
Functional thyroid status	0.66 (0.56, 0.78)	<0.001	0.75 (0.61, 0.91)	0.004		0.151	0.38 (0.21, 0.68)	0.001
Hashimoto’s thyroiditis	2.16 (1.64, 2.86)	<0.001	2.32 (1.74, 3.10)	<0.001	1.93 (1.38, 2.69)	<0.001		0.374
Chronic non-Specific thyroiditis	2.78 (2.00, 3.87)	<0.001	3.08 (2.21, 4.30)	<0.001	2.56 (1.76, 3.73)	<0.001		0.283
Thyroid gland weight	1.00 (1.00, 1.00)	0.007	1.00 (1.00, 1.00)	0.026		0.402		0.655

Values in parentheses are 95 per cent confidence intervals. *Includes papillary microcarcinoma and clinical papillary cancer. OR. odds ratio.