Skip to main content

Table 1 Patient Characteristics

From: Severity of illness and the weekend mortality effect: a retrospective cohort study

CharacteristicsMonday through Friday
(N = 8,408,723)
Weekend (Saturday/Sunday)
(N = 1,956,882)
p-value
% or Median [IQR]% or Median [IQR]
Age
Median57.2 [38.9–69.5]55.7 [36.1–69.9]< 0.001
Sex
 Male45.6%46.0%< 0.001
 Female54.4%54.0%< 0.001
 Unknown< 0.01%0.01%< 0.001
Race
 White64.1%60.1%< 0.001
 Black21.6%24.7%< 0.001
 Asian2.8%2.9%< 0.001
 Other9.1%9.7%< 0.001
 Unknown/Unavailable/Declined2.5%2.6%< 0.001
Ethnicity
 Hispanic8.7%9.5%< 0.001
 Non-Hispanic76.6%76.6%< 0.001
 Unknown/Not Reported/Unavailable/Declined14.7%13.9%< 0.001
Primary Payer
 Commercial31.0%26.5%< 0.001
 Medicaid20.6%23.6%< 0.001
 Medicare40.4%40.5%< 0.001
 Other8.1%9.4%< 0.001
Admission Risk of Mortality
 Minor48.8%42.4%< 0.001
 Moderate27.5%27.0%< 0.001
 Major18.0%21.9%< 0.001
 Extreme5.7%8.7%< 0.001
Admission Severity of Illness
 Minor24.0%19.0%< 0.001
 Moderate38.7%36.3%< 0.001
 Major29.2%33.5%< 0.001
 Extreme8.2%11.2%< 0.001
Admission Status
 Emergency49.0%70.2%< 0.001
 Urgent17.6%17.8%< 0.001
 Elective31.4%8.3%< 0.001
 Trauma Center1.6%3.3%< 0.001
 Info not available0.3%0.4%< 0.001
Number of Comorbidities
Median2 [1–4]2 [1–4]< 0.001
Mean2.42.7< 0.001