Skip to main content
. 2023 Sep 7;149(12):1075–1082. doi: 10.1001/jamaoto.2023.2701

Table 4. Changes in Clinical Parameters for Participants With Cystic Fibrosis During the 1-Year Elexacaftor-Tezacaftor-Ivacaftor Treatment Period.

Measurement time
Baseline 3 Months 6 Months 9 Months 12 Months
ppFEV1
Median (IQR) 67 (56-85) 85 (68-98) 90 (79-101) 87 (72-98) 86 (71-99)
Change from baseline, % NA 26.9 34.3 29.9 28.4
β Coefficient (95% CI)a NA 13.2 (11.3-15.2) 15.1 (13.0-17.2) 15.0 (13.0-17.0) 14.2 (12.3-16.2)
BMI
Median (IQR) 21.0 (19.1-24.3) 22.3 (20.4-24.8) 23.0 (20.5-25.2) 22.9 (20.5-26.5) 23.0 (20.4-26.7)
Change from baseline, % NA 6.2 9.5 9.0 9.5
β Coefficient (95% CI)a NA 1.1 (0.7-1.5) 1.5 (1.1-2.0) 1.8 (1.4-2.2) 1.9 (1.5-2.3)
Positivity for Pseudomonas aeruginosa
Total No. of participants 64 56 60 60 62
No. (%) with finding 34 (53.1) 15 (26.8) 15 (25.0) 12 (20.0) 14 (22.3)
OR (95% CI)b NA 0.06 (0.01-0.26) 0.04 (0.01-0.17) 0.02 (0.01-0.12) 0.03 (0.01-0.15)
Positivity for MRSA
Total No. of participants 64 56 60 60 62
No. (%) with finding 19 (29.7) 11 (19.6) 11 (18.3) 9 (15.0) 11 (17.7)
OR (95% CI)b NA 0.03 (0.01-0.33) 0.06 (0.01-0.55) 0.02 (0.01-0.25) 0.06 (0.01-0.54)

Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); MRSA, methicillin-resistant Staphylococcus aureus; NA, not applicable; OR, odds ratio; ppFEV1, percent predicted forced expiratory volume in 1 second.

a

Represents estimated mean changes from baseline using linear mixed effects models.

b

Compared with baseline using logistic mixed effects models.