Table 2. The relationship between clinical factors and incidence of bone marrow suppression (BMS) ≥Grade 2.

Clinical factors	case(N)	The cases ≥Grade 2 acute bone marrow suppression		χ2 value	P value
		case(N)	incidence rate(%)
Gender				0.043	0.551
male	31	9	29.03
female	19	5	26.32
Age				0.651	0.311
<60years	24	8	33.33
≥60years	26	6	23.08
BMI				0.021	0.446
<23.34	24	6	25
≥23.34	26	8	30.77
TNM stage				0.123	0.726
I-II	16	5	31.25
III-IV	34	9	26.47
Surgery				0.734	0.301
yes	31	10	32.26
no	19	4	21.05

BMI= body mass index; TNM= T:tumor, N:lymph node, M:metastasis.