Assessing time to pulmonary function benefit following antibiotic treatment of acute cystic fibrosis exacerbations

Table 3 Relationships between Treatment Duration and Observed Peak FEV₁

	Treatment Duration Window
	4-8 Days	9-13 Days	14+ Days
Patients, n	10	43	42
Median Treatment Duration, days	7	12	14
Median Peak FEV₁ Observation, days	4.5	8	11.5
Mean Peak FEV₁ Increase, liters ± SD	0.46 ± 0.64	0.62 ± 0.43	0.50 ± 0.38
Patients Reaching Peak FEV₁ before Duration Window, n (%)	3 (30.0%)	22 (51.2%)	36 (85.7%)

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