Readmission rates and outcomes in adults with and without COVID-19 following inpatient chemotherapy admission: A nationwide analysis

Table 1 Comparison of patients’ demographics between inpatient chemotherapy and readmission for inpatient chemotherapy, Nationwide Readmission Database, 2020

Variables (unit)	Index admission	30 d readmission	P value
Mean age ± SD (yr)	54.7 ± 17.71	53.53 ± 17.94
Age range categories (%)			< 0.001
18-44 yr	26.86	29.5
45-64 yr	40.06	39.62
65 yr and above	33.08	30.89
Sex (%)			0.182
Male	58.07	58.47
Female	41.93	41.53
Payer type (%)			< 0.001
Medicare	34.43	32.33
Medicaid	17.06	18.14
Private insurance	46.14	47.25
Self pay	2.36	2.28
Median household income (%)			0.617
0-25th quintile	22.28	21.96
26th-50th quintile	27.91	28.02
50th-75th quintile	25.61	25.85
> 75th quintile	24.19	24.18
ECI score (%)			< 0.001
0	4.88	4.14
1	18.61	17.7
2	23.75	23.35
3	20.61	20.53
≥ 4	32.15	34.28

ECI: Elixhauser comorbidity index.