Prognostic Factors and Nomograms to Predict Overall and Cancer-Specific Survival for Children with Wilms’ Tumor

Table 1

Baseline clinicopathological features of patients with Wilms’ tumor.

Variables	Training cohort; ()		Validation cohort; ()		Total; ()
Sex (, %)							0.480
Male	586	48.4%	187	46.4%	773	47.9%
Female	624	51.6%	216	54.6%	840	52.1%
Age (, %)							0.967
≤3	755	62.4%	251	62.3%	1006	62.4%
3-18	455	37.6%	152	37.7%	607	37.6%
Race (, %)							0.591
Black	215	17.8%	71	17.6%	286	17.7%
White	925	76.4%	314	77.9%	1239	76.8%
Other	70	5.8%	18	4.5%	88	5.5%
Laterality (, %)							0.621
Left	566	46.8%	188	46.7%	754	46.7%
Right	573	47.3%	186	46.1%	759	47.1%
Bilateral	71	5.9%	29	7.2%	100	6.2%
Tumor size (, %)							0.791
≤4	98	8.1%	37	9.2%	135	8.4%
4-7	150	12.4%	50	12.4%	200	12.4%
>7	962	79.5%	316	78.4%	1278	79.2%
Surgical status (, %)							0.085
No	29	2.4%	4	1%	33	2.0%
Yes	1181	97.6%	399	99%	1580	98.0%
SEER historic stage A							0.824
Regional	380	31.4%	123	30.5%	503	31.2%
Localized	543	44.9%	188	46.7%	731	45.3%
Distant	287	23.7%	92	22.8%	379	23.5%