Table 2.

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

	All thyroid cancers		All papillary thyroid cancers*		Papillary thyroid microcarcinoma		Hürthle cell cancer
	OR	P	OR	P	OR	P	OR	P
Age	1.00 (0.99, 1.00)	0.023	0.99 (0.99, 0.99)	<0.001	0.99 (0.99, 1.00)	0.036	1.03 (1.01, 1.06)	0.005
Sex	0.73 (0.60, 0.88)	0.001	0.72 (0.59, 0.88)	0.001		0.410		0.245
Functional thyroid status	0.68 (0.59, 0.80)	<0.001	0.77 (0.66, 0.90)	0.001		0.101	0.37 (0.21, 0.65)	0.001
Largest adenoma	0.99 (0.98, 1.00)	0.012		0.388		0.302		0.506
Hashimoto’s thyroiditis	2.31 (1.85, 2.89)	<0.001	2.42 (1.93, 3.04)	<0.001	2.49 (1.92, 3.23)	<0.001		0.335
Chronic non-specific thyroiditis	2.54 (1.97, 3.26)	<0.001	2.88 (2.24, 3.71)	<0.001	2.78 (2.07, 3.72)	<0.001		0.229

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