Clinical features of probable severe acute respiratory syndrome in Beijing

Table 1 Positive rates of symptoms in our study cohort (%).

Variable	1–3 d	4–7 d	8–11 d	12 d-	15 d-	22 d-	29 d-
Chill	12.6	9.34	4.32	2.4	1.43	0.31	0.57
Rigor	4.29	2.39	0.61	1.05	0.29	0	0.19
Fatigue	33.85	27.59	22.65	14.16	3.3	8.47	4.32
Headache	21.34	12.03	7.45	3.18	13.88	1.99	1.89
Arthralgia	16.01	9.64	5.31	3.53	2.87	2.31	2.29
Myalgia	22.17	13.23	7.63	5.38	4.3	2.92	1.52
Diarrhea	9.88	12.09	5	3.71	3.14	1.8	2.7
Cough	23.76	24.18	29.18	28.68	20.85	8.02	4.23
Sputum production	8.02	14.26	13.09	11.36	8.56	3.08	2.01
Chest distress	8.43	21.04	31.83	35.23	35.34	26.09	17.15
Breath shortness	8.24	9.23	15.65	20.35	18.01	7.12	5.01
Rales	6.2	4.78	5.08	4.65	3.12	1.25	1.01