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Table 2 Baseline characteristics of patients between WBRT+boost and WBRT alone after propensity score matching

From: Whole brain radiation therapy plus focal boost may be a suitable strategy for brain metastases in SCLC patients: a multi-center study

 WBRT + boostWBRT AloneP-Value
(n = 70)(n = 70)
Age, No. (%)  0.611
 < 603431 
 ≥603639 
Sex, No. (%)  0.577
 Male4851 
 Female2219 
KPS, No. (%)  0.294
 ≤804147 
 > 802923 
Number of BMs, No. (%)  0.175
 1–34234 
 > 32836 
Maximum size of BM, No. (%)  0.176
 < 20 mm3341 
20 mm3729 
Extracranial metastases, No. (%)  0.092
 Yes1621 
 None124 
 Unknown4245 
Symptoms of BM, No. (%)  0.735
 Yes3533 
 None3537 
Systematic treatment  0.237
 CTx5056 
 No-CTx2014 
  1. Abbreviations: WBRT+boost whole brain radiotherapy plus focal radiation boost, WBRT whole brain radiation therapy, SRS stereotactic radiosurgery, KPS Karnofsky Performance Status, BM brain metastasis, CTx chemotherapy, No-CTx no chemotherapy