Comparison of M. avium percentage of killing at 60 min by CF neutrophils based on demographic or clinical characteristics (sex, use of cystic fibrosis transmembrane conductance regulator [CFTR] modulator, CFTR genotype, NTM infection history, current use of azithromycin, or current hospitalization for a pulmonary exacerbation) did not reveal any notable differences. Here, CFTR is linked to cystic fibrosis.