Table 1. Mechanical ventilation (univariable analyses).

Demographic and clinical features of a group of post COVID-19 patients associated to invasive.

Variable	TotalN (%)a N = 280	Invasive Mechanical Ventilation N (%)		P value
		Present N = 168 (60)	Absent N = 112 (40)
>60 years old	100 (35.7)	56 (33.3)	44 (39.3)	0.309
Male sex	152 (54.3)	101 (60.1)	51 (45.5)	0.016d
Comorbidities
Hypertension	116 (41.4)	72 (42.9)	44 (39.3)	0.552
Diabetes	82 (29.3)	49 (29.2)	33 (29.5)	0.957
Obesity and/or Overweight	227 (81.1)	134 (79.8)	93(83.0)	0.493
Dyslipidemia	17 (6.1)	10 (6)	7 (6.3)	0.919
Hypothyroidism	16 (5.7)	5 (3)	11 (9.8)	0.016 d
Heart disease	7 (2.5)	5 (3)	2 (1.8)	0.532
History of lung disease	10 (3.6)	1 (0.6)	9 (8)	0.001b,d
Previously healthy	35 (12.5)	19 (11.3)	16 (14.3)	0.461
Risk factors
Smoking	110 (39.3)	69 (41.1)	41 (36.3)	0.454
Biomass exposure	46 (16.4)	23 (13.7)	23 (20.5)	0.130
Alcoholism	23 (8.2)	17 (10.1)	6 (5.4)	0.155
Clinical presentation
≥3 symptoms	184 (65.7)	114 (67.9)	70 (62.5)	0.355
1–2 symptoms	90 (32.1)	51 (30.4)	39 (34.8)	0.433
Asymptomatic	6 (2.1)	3 (1.8)	3 (2.7)	0.680
Sequelae
Respiratory symptoms	182 (65)	103 (61.3)	79 (70.5)	0.103
Cardiovascular symptoms	52 (18.6)	33 (19.6)	19 (17)	0.572
General symptoms	152 (54.3)	90 (53.6)	62 (55.4)	0.769
Musculoskeletal symptoms	94 (33.6)	65 (38.7)	29 (25.9)	0.026 b,d
Dermatological symptoms	47 (16.8)	34 (20.2)	13 (11.6)	0.058
Neurological and neuropsychiatric symptoms	175 (62.5)	113 (67.3)	62 (55.4)	0.044 b,d
Gastrointestinal symptoms	38 (13.6)	27 (16.1)	11 (9.8)	0.135
Audiologic symptoms	10 (3.6)	7 (4.2)	3 (2.7)	0.511

^a Data are presented as N (%).

^b Fisher Exact Test was used to report the p value, otherwise Chi squared test was performed.

^c COVID-19 = Coronavirus disease 19.

^d P values in bold have statistical significance.