Table 1.

Characteristics of survivors of childhood DTC vs individuals non-affected with cancer.

	DTC survivors	Peer controls	P value	Comparison group	P value
n	39	30		508
Age at evaluation (years)	26.2 (18.8–35.7)	25.8 (19.4–34.4)	0.628†	23.8 (18.0–31.0)	0.012†
Sex, n (%)			0.690‡		<0.001*§
Female	34 (87)	28 (93)		269 (53)
Male	5 (13)	2 (7)		239 (47)
Employment, n (%)			0.576‡		1.000‡
Employed and/or student	38 (97)	28 (93)		486 (96)
Not employed and no student	1 (3)	2 (7)		21 (4)
Missing	0 (0)	0 (0)		1 (0)
Completed education, n (%)			0.035‡		0.002*§
Low level	7 (18)	0 (0)		143 (28)
Medium level	15 (39)	12 (40)		246 (48)
High level	17 (44)	18 (60)		97 (19)
Missing	0 (0)	0 (0)		22 (4)
Marital status‖, n (%)			0.303§		n.a.
Relationship	24 (62)	22 (73)		–
No relationship	15 (38)	8 (27)		–
Marital status‖, n (%)			n.a.		n.a.
Not married and not living together	–	–		299 (59)
Married or living together	–	–		192 (38)
Missing	–	–		17 (3)

^†Mann–Whitney U test; ^‡Fisher’s exact test; ^§Chi square test; ^‖answer options regarding marital status of two different questionnaires were non-mergeable, therefore these are shown separately. Missing values were excluded for statistical testing (pairwise deletion). Continuous variables are presented as median (range). *Indicates a statistically significant difference (P < 0.01).

CCS, childhood cancer survivors; DTC, differentiated thyroid carcinoma; n.a., not applicable.