1-year pulmonary function and health status in survivors of severe acute respiratory syndrome.
OBJECTIVE
To characterize the long-term pulmonary function and health status in a prospectively identified cohort of patients who survived the severe acute respiratory syndrome (SARS).


METHODS
Prospective follow-up cohort study.


METHODS
University-affiliated hospital.


METHODS
Ninety-four patients who recovered from SARS were assessed at a uniform time point of 1 year after hospital discharge.


METHODS
The study included the measurement of static and dynamic lung volumes, the determination of the diffusing capacity of the lung for carbon monoxide (D(LCO)), and a health status evaluation using the St. George Respiratory Questionnaire (SGRQ).


RESULTS
Eleven patients (12%) had mild impairment of FVC, 20 (21%) had mild impairment of FEV1, 5 (5%) had mild impairment of the FEV1/FVC ratio, and 17 (18%) had mild impairment of the D(LCO). There was one patient (1%) who had moderate impairment of FVC, one patient (1%) who had moderate impairment of the FEV1/FVC ratio, and three patients (3%) who had moderate impairment of the D(LCO). No pulmonary function abnormalities were detected in 59 patients (63%). Mean scores were significantly higher (ie, worse) than the population norms in the activity (p < 0.001), impacts (p < 0.001), and total (p < 0.001) domains of the SGRQ.


CONCLUSIONS
One year after recovery from SARS, persistent pulmonary function impairment was found in about one third of patients. The health status of SARS survivors was also significantly worse compared with the healthy population. The main determinants of morbidity in recovered SARS patients need to be further defined.
Ong
Kian-Chung
KC
Department of Respiratory Medicine, Tan Tock Seng Hospital, Singapore. ongkianchung@yahoo.com.sg
Ng
Alan Wei-Keong
AW
Lee
Lawrence Soon-U
LS
Kaw
Gregory
G
Kwek
Seow-Khee
SK
Leow
Melvin Khee-Shing
MK
Earnest
Arul
A
D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006304:Health Status; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D020127:Recovery of Function; D012129:Respiratory Function Tests; D045169:Severe Acute Respiratory Syndrome; D012846:Singapore; D017741:Survivors; D013997:Time Factors