Table 4 The risk factors for chemotherapy-associated lymphopenia <0.66 × 10 ⁹ /L in colorectal cancer by multivariate logistic regression model

Pretreatment albumin

≥35 g/L

1.00(ref.)

<35 g/L

0.685

0.302-1.550

0.363

Pretreatment CEA ^a

<10 ng ml^-1

1.00(ref.)

≥10 ng ml^-1

3.338

1.523-7.315

0.003

Differentiation

Well

1.00(ref.)

Moderately

1.200

0.308-4.678

0.793

Low

3.049

0.553-16.828

0.201

Sex

Male

1.00(ref.)

Female

1.219

0.600-2.474

0.584

Age

≤49 years

1.00(ref.)

50-60 yeas

0.840

0.271-2.608

0.763

>60 years

2.358

0.904-6.154

0.080

Location

Rectum

1.00(ref.)

Left colon cancer

1.056

0.484-2.300

0.892

Right colon cancer

0.532

0.192-1.475

0.225

Stage

II

1.00(ref.)

III

0.847

0.403-1.781

0.661