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Table 1 Characteristics of study populations with stage III colon cancer eligible for adjuvant chemotherapy following surgical resection

From: Timing of adjuvant chemotherapy initiation and mortality among colon cancer patients at a safety-net health system

Characteristics Study population for adjuvant chemotherapy initiation ≤ 8 weeks of surgical resection
(n = 222)
n (%)
Study population for adjuvant chemotherapy initiation ≤ 12 weeks of surgical resection
(n = 310)
n (%)
Age (years)
Median (Interquartile range) 56 (50–61) 56 (50–61)
Sex
Female 126 (57) 175 (56)
Male 96 (43) 135 (44)
Race/Ethnicity
Non-Hispanic White 77 (35) 112 (36)
Non-Hispanic Black 67 (30) 87 (28)
Hispanic 57 (26) 87 (28)
Non-Hispanic other 21 (9.5) 24 (7.7)
Insurance coverage
Uninsured without hospital-based medical assistance program 50 (23) 73 (24)
Uninsured with hospital-based medical assistance program 107 (48) 137 (44)
Insureda 65 (29) 100 (32)
Marital status
Single 89 (40) 124 (40)
Married 70 (32) 99 (32)
Divorced/Separated/Widowed 63 (28) 87 (28)
Body Mass Index (BMI)
BMI < 25 56 (25) 78 (25)
25 ≤ BMI < 30 59 (27) 87 (28)
BMI ≥ 30 107 (48) 145 (47)
NCI comorbidity index
0 168 (76) 235 (76)
  > 0 54 (24) 75 (24)
Tumor grade
Well/Moderately differentiated 191 (86) 265 (85)
Poorly differentiated/Undifferentiated 31 (14) 45 (15)
Surgery procedure
Partial colectomy/Segmental resection 106 (48) 143 (46)
Subtotal/Hemicolectomy/Total colectomy 116 (52) 167 (54)
Timing of adjuvant chemotherapy initiation
Initiation ≤ 8 weeks of surgical resection 81 (36) N/A
No initiation ≤ 8 weeks of surgical resection 141 (64) N/A
Initiation ≤ 12 weeks of surgical resection N/A 150 (48)
No initiation ≤ 12 weeks of surgical resection N/A 160 (52)
  1. aCommercial or public insurance