Risk Factors for Anaplastic Thyroid Cancer

Table 3

Hormonal and reproductive characteristics of female examinees.

	Cases		Controls		𝑃^∗
	𝑁	%	𝑁	%
Menarche before 15
Yes	61	79.2	140	90.9	0.0151
No	16	20.8	14	9.1
Normal menstruations
Yes	73	94.8	149	96.8	0.4747
No	4	5.2	5	3.2
Pregnancy
Yes	73	94.8	152	98.7	0.1041
No	4	5.2	2	1.3
First pregnancy before 19
Yes	14	19.2	14	9.2	0.0376
No	59	80.8	138	90.8
Number of children
<2 children	37	48.1	84	54.4	0.2751
≥2 children	40	51.9	70	45.6
Miscarriages
Yes	4	5.5	4	2.6	0.2905
No	69	94.5	148	97.4
Abortions
Yes	58	75.4	109	70.6	0.4158
No	19	24.6	45	29.4
Oral contraceptives
Yes	20	26.0	34	22.1	0.5099
No	57	74.0	120	77.9
Menopause estrogens
Yes	5	7.0	8	5.6	0.6678
No	66	93.0	136	94.4

∗Univariate logistic regression analysis.