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. 2021 Feb 15;4(2):e2036695. doi: 10.1001/jamanetworkopen.2020.36695

Table 1. Clinical and Demographic Characteristics of Patients Who Received Paclitaxel and Oxaliplatin Chemotherapy.

Characteristics Participants, No. (%) P value
Paclitaxel (n = 228) Oxaliplatin (n = 105)
Women 221 (96.9) 45 (42.9) <.001
Cancer types
Breast 138 (60.5) 0 <.001
Colorectal 0 83 (79.0)
Ovarian 37 (16.2) 0
Endometrial 32 (14.0) 0
Gastrointestinal 6 (2.6) 10 (9.5)
Pancreatic 2 (0.9) 10 (9.5)
Cervical 3 (1.3) 0
Lymphoma 0 1 (1.0)
Unknown 10 (4.4) 1 (1.0)
Stage <.001
I 24 (10.5) 1 (1.0)
II 82 (36.0) 11 (10.5)
III 70 (30.7) 47 (44.8)
IV 32 (14.0) 40 (38.1)
Undefined 20 (8.8) 6 (5.7)
Type 2 diabetes 18 (7.9) 10 (9.5) .87
Carpal tunnel syndrome 14 (6.1) 6 (5.7) .68
Numbness and tingling before chemotherapy 11 (4.8) 2 (1.9) .007
Blood parameters outside normal range
Low hemoglobin 47 (20.6) 32 (30.5) .05
High lymphocytes 27 (11.8) 10 (9.5) .59
High white blood cell count 20 (8.8) 15 (14.3) .16
Low lymphocytes 22 (9.6) 8 (7.6) .85
High neutrophils 11 (4.8) 9 (8.6) .23
Microcytic anemia 7 (3.1) 11 (10.5) .02
Low neutrophils 13 (5.7) 1 (1.0) .006
Low white blood cell count 13 (5.7) 0 .006
Low albumin 9 (3.9) 5 (4.8) .72
Age, median (IQR), y 57 (48-67) 60 (50-68) .12
Months since treatment, median (IQR) 9 (6-12) 6 (4-11) <.001
Chemotherapy dose, mean (SD), mg/m2 844.6 (232.4) 749.1 (189.0) NA
Relative dose intensity, mean (SD), % 88.6 (12.8) 83.8 (13.4) .03
Body surface area, mean (SD), m2 1.81 (0.22) 1.92 (0.23) <.001
Body mass index, mean (SD)a 27.5 (6.6) 27.5 (5.5) .95
White blood cells, mean (SD), × 103/μL 7.20 (2.7) 7.35 (2.0) .62
Neutrophils, mean (SD), × 103/μL 4.43 (2.2) 4.71 (1.6) .24
Lymphocytes, mean (SD), × 103/μLb 1.96 (0.8) 1.88 (0.9) .17
Monocytes, mean (SD), × 103/μLb 0.52 (0.3) 0.54 (0.3) .15
Hemoglobin, mean (SD), g/dL 12.9 (1.2) 12.9 (1.5) .74
Magnesium, mean (SD), mg/dL 2.07 (0.2) 2.02 (0.2) .18
Albumin, mean (SD), g/dL 4.0 (0.5) 3.9 (0.5) .06
Mean corpuscular volume, mean (SD), μm3b 89.4 (6.4) 86.6 (6.1) <.001
Neutrophil-to-lymphocyte ratio, mean (SD)b 2.7 (2.9) 3.1 (2.4) .005
Monocyte-to-lymphocyte ratio, mean (SD)b 0.31 (0.2) 0.34 (0.2) .01

Abbreviations: IQR, interquartile range; NA, not applicable.

SI conversion factor: To convert white blood cells, neutrophils, lymphocytes, and monocytes to × 109/L, multiply by 0.001; to convert hemoglobin and albumin to g/L, multiply by 10.0; to convert magnesium to mmol/L, multiply by 0.4114; and to convert mean corpuscular volume to fL, multiply by 1.0.

a

Body mass index is calculated as weight in kilograms divided by height in meters squared.

b

Mann-Whitney U test for nonnormally distributed data.