Table 4 Chi-squared analysis of groups <10th percentile and >90th percentile per symptoms.

From: The antibody response to SARS-CoV-2 infection persists over at least 8 months in symptomatic patients

		<10 perc	>90 perc	p value	% Yes <10 perc^a	%Yes >90 perc^a
Symptoms
Fever	No	360	284	3.9E-07
Fever	Yes	94	161	3.9E-07	37	63
Low-grade fever	No	388	359	0.0678
Low-grade fever	Yes	66	86	0.0678	43	57
Cough	No	335	284	0.0016
Cough	Yes	119	161	0.0016	43	58
Sore throat	No	302	271	0.0923
Sore throat	Yes	152	174	0.0923	47	53
Muscle pain	No	310	246	0.0001
Muscle pain	Yes	144	199	0.0001	42	58
Asthenia	No	340	268	3.7E-06
Asthenia	Yes	114	177	3.7E-06	39	61
Anosmia/dysgeusia	No	364	247	4.0E-15
Anosmia/dysgeusia	Yes	90	198	4.0E-15	31	69
Gastrointestinal symptoms	No	336	313	0.2485
Gastrointestinal symptoms	Yes	118	132	0.2485	47	53
Conjunctivitis	No	400	382	0.3633
Conjunctivitis	Yes	54	63	0.3633	46	54
Dyspnea	No	405	375	0.0370
Dyspnea	Yes	49	70	0.0370	41	59
Chest pain	No	415	367	0.0001
Chest pain	Yes	39	78	0.0001	33	67
Tachycardia	No	406	371	0.0107
Tachycardia	Yes	48	74	0.0107	39	61
Pneumonia	No	440	420	0.0889
Pneumonia	Yes	14	25	0.0889	36	64
Total of Symptoms in phase 1	Asymptomatic	150	80	3.4E-07	65	35
	Paucisymptomatic	179	158	0.2520	53	47
	Symptomatic	125	207	5.6E-09	38	62
Comorbidities
Chronic obstructive bronchopneumopathy	No	451	444	0.6305^b
Chronic obstructive bronchopneumopathy	Yes	3	1	0.6305^b
Asthma	No	430	412	0.2408
Asthma	Yes	24	33	0.2408
Dyslipidemia	No	413	404	0.9834
Dyslipidemia	Yes	41	41	0.9834
Past neoplasia	No	431	438	0.0063
Past neoplasia	Yes	23	7	0.0063
Hypertension	No	401	409	0.0915
Hypertension	Yes	53	36	0.0915
Past coronaropathies	No	454	443	0.4702^b
Past coronaropathies	Yes	0	2	0.4702^b
Atrial fibrillation	No	450	441	0.7439^b
Atrial fibrillation	Yes	4	4	0.7439^b
Past stroke/ TIA	No	452	445	0.4878^b
Past stroke/ TIA	Yes	2	0	0.4878^b
Steatosis/cyrrosis	No	448	444	0.1359^b
Steatosis/cyrrosis	Yes	6	1	0.1359^b
Chronic kidney failure	No	453	445	0.9920^b
Chronic kidney failure	Yes	1	0	0.9920^b
Other liver diseases	No	452	441	0.6641^b
Other liver diseases	Yes	2	4	0.6641^b
Rheumatological diseases	No	445	431	0.3715
Rheumatological diseases	Yes	9	14	0.3715
Other diseases of the immune system	No	418	409	0.9726
Other diseases of the immune system	Yes	36	36	0.9726
Diabetes mellitus	No	452	443	0.6305^b
Diabetes mellitus	Yes	2	2	0.6305^b
Gotta	No	452	445	0.4878^b
Gotta	Yes	2	0	0.4878^b

^aPercentage of subjects with symptoms (Yes) per rate class.
^bMinority class is less or equal to 5 (chi-square test is not reliable).

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