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. Author manuscript; available in PMC: 2007 Jun 22.
Published in final edited form as: Chest. 2003 Mar;123(3):725–730. doi: 10.1378/chest.123.3.725

Table 2.

Subjects Able To Produce Three Acceptable Expiratory Efforts ≥ 6 s Without EBEV and Efforts Meeting Modified Standards*

Variables Neurologically Complete Cervical SCI, ≥ 6-s Exhalation and No EBEV Neurologically Complete Cervical SCI, Includes Efforts < 6 s with 0.5-s Plateau; EBEV Permitted Others With SCI, ≥ 6-s Exhalation and No EBEV Others With SCI, Includes Efforts < 6 s with 0.5-s Plateau; EBEV Permitted
Acceptability 64.9 (37/57) 87.7 (50/57) 87.3 (193/221) 95.9 (212/221)
Reproducibility 66.7 (38/57) 87.7 (50/57) 81.0 (179/221) 93.7 (207/221)
*

Data are presented as % (No. of patients/total patients). Reproducibility standards are based on 1994 ATS standards. Use of modified acceptability criteria in subjects with neurologically complete cervical injury increased the proportion of subjects with reproducible spirometry compared to others with neurologically complete and incomplete SCI.