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. 2021 May 28;53(9):102118. doi: 10.1016/j.aprim.2021.102118

Table 1.

Univariate analyses comparing characteristics (demographics, pre-existing comorbidities and early symptoms at presentation) in 282 community-dwelling COVID-19 patients over 50 years according to occurrence or not of a critical outcome (ICU-admission or death) across clinical course.

Variable Outcome
Non-ICU/death
(N = 218)
n (%)
ICU/death
(N = 64)
n (%)
p-value Total
(N = 282)
n (%)
Demographics
 Age: 50–64 yrs 142 (65.1) 13 (20.3) <0.001 155 (54.9)
 65–79 yrs 56 (25.7) 31 (48.4) 87 (30.9)
 ≥80 yrs 20 (9.2) 20 (31.3) 40 (14.2)
 Sex: Men
 Women
101 (46.3)
117 (53.7)
39 (60.9)
25 (39.1)
0.040 140 (49.6)
142 (50.4)



Comorbidities
 Neurological 4 (1.8) 4 (6.3) 0.061 8 (2.8)
 Renal 18 (8.3) 11 (17.2) 0.039 29 (10.3)
 Cancer 24 (11.0) 10 (15.6) 0.319 34 (12.1)
 Rheumatic 4 (1.8) 1 (1.6) 0.885 5 (1.8)
 Respiratory 28 (12.8) 21 (32.8) <0.001 49 (17.4)
 Cardiac 43 (19.7) 23 (35.9) 0.007 66 (23.4)
 Atrial fibrillation 16 (7.3) 9 (14.1) 0.096 25 (8.9)
 Liver disease 3 (1.4) 3 (4.7) 0.107 6 (2.1)
 Hypertension 83 (38.1) 37 (57.8) 0.005 120 (42.6)
 Diabetes 31 (14.2) 23 (35.9) <0.001 54 (19.1)
 Smoking 21 (9.6) 4 (6.3) 0.402 25 (8.9)
 Alcoholism 5 (2.3) 2 (3.1) 0.707 7 (2.5)
 Obesity 54 (24.8) 18 (28.1) 0.588 72 (25.5)



Symptoms
 Cough 153 (70.2) 38 (59.4) 0.104 191 (67.7)
 Sore throat 31 (14.2) 6 (9.4) 0.313 37 (13.1)
 Rinorrhea (RN) 26 (11.9) 2 (3.1) 0.038 28 (9.9)
 Myalgias 73 (33.5) 4 (6.3) <0.001 77 (27.3)
 Fatigue 67 (30.7) 18 (28.1) 0.689 85 (30.1)
 Headache 53 (24.3) 6 (9.4) 0.010 59 (20.9)
 Ageusia/disgeusia (AG) 28 (12.8) 3 (4.7) 0.067 31 (11.0)
 Anosmia (AN) 34 (15.6) 3 (4.7) 0.023 37 (13.1)
 Cluster RN/AG/AN 61 (28.0) 4 (6.3) <0.001 65 (23.0)
 Chest pain 31 (14.2) 6 (9.4) 0.313 37 (13.1)
 Dyspnoea 65 (29.8) 47 (73.4) <0.001 112 (39.7)
 Vomiting 12 (5.5) 3 (4.7) 0.798 15 (5.3)
 Diarrhoea 53 (24.3) 15 (23.4) 0.886 68 (24.1)
 Confusion 5 (2.3) 10 (15.6) <0.001 15 (5.3)
 General discomfort 93 (42.7) 26 (40.6) 0.772 119 (42.2)
 Fever 154 (70.6) 46 (71.9) 0.849 200 (70.9)

NOTE: Early symptoms were considered within the first five days of the onset of disease. p-values were calculated by using chi-squared or Fisher's test as appropriate.