Table 3:

Interrater agreement between variables collected prospectively and retrospectively from 811 patients

Variable	Cohen κ coefficient (95% CI)
Living situation
Home, long-term care, homeless, other*	0.76 (0.69 to 0.84)
Symptoms
Cough	0.63 (0.57 to 0.68)
Shortness of breath	0.67 (0.61 to 0.72)
Fever	0.65 (0.60 to 0.71)
Headache	0.58 (0.51 to 0.66)
Nausea or vomiting	0.53 (0.45 to 0.61)
Diarrhea	0.63 (0.55 to 0.71)
Myalgias	0.40 (0.32 to 0.49)
Dysgeusia or anosmia	0.37 (0.11 to 0.64)
Infection risk
Travel	0.31 (0.04 to 0.58)
Institutional exposure	0.51 (0.36 to 0.66)
Health care worker	0.69 (0.59 to 0.80)
Household or caregiver contact	0.37 (0.19 to 0.56)
Other	0.24 (0.04 to 0.44)
Comorbidities
Congestive heart failure	0.71 (0.61 to 0.82)
Coronary artery disease	0.51 (0.39 to 0.62)
Hypertension	0.70 (0.64 to 0.76)
Asthma	0.80 (0.72 to 0.87)
Pulmonary fibrosis	0.39 (−0.15 to 0.94)
Chronic lung disease (not asthma or IPF)	0.72 (0.64 to 0.80)
Chronic kidney disease	0.73 (0.63 to 0.84)
Dialysis	0.58 (0.14 to 0.30)
Diabetes	0.69 (0.61 to 0.77)
Liver disease	0.43 (0.17 to 0.68)
Organ transplant	0.77 (0.51 to 1.00)
Chronic neurological disorder (not dementia)	0.17 (−0.01 to 0.34)
Dementia	0.51 (0.26 to 0.77)
Rheumatologic disorder	0.39 (0.18 to 0.60)
Active malignant neoplasm	0.55 (0.41 to 0.69)
Past malignant neoplasm	0.23 (0.07 to 0.38)
Obesity (clinical impression)	0.22 (0.05 to 0.39)
Respiratory distress
Respiratory distress	0.18 (0.12 to 0.25)
Other risk factors
Smoking (never, current, past use)*	0.73 (0.66 to 0.80)
Alcohol misuse (never, current, past use)*	0.53 (0.43 to 0.63)
Illicit substance use (never, current, past use)*	0.82 (0.75 to 0.89)

Note: CI = confidence interval, IPF = idiopathic pulmonary fibrosis.

^*Nonbinary variables with multiple categories.