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. 2020 Sep;17(9):1085–1093. doi: 10.1513/AnnalsATS.201905-375OC

Table 1.

Baseline characteristics of all participants, including children with PCD, children with CF, and healthy control subjects*

Characteristics Subjects with PCD (n = 25) Subjects with CF (n = 49) HC Subjects (n = 80)
Sex, M, n (%) 13 (52) 26 (53%) 37 (46)
Age, median (IQR), yr 8.6 (5.9 to 10.0) 8.9 (6.8 to 10.8) 8.6 (6.0 to 10.9)
Weight z-score, median (IQR) −0.34 (−1.01 to 0.53) −0.30 (−0.67 to 0.50) 0.21 (−0.51 to 0.89)
Height z-score, median (IQR) −0.53 (−1.18 to 0.31) −0.27 (−1.02 to 0.25) −0.02 (−0.67 to 0.62)
BMI z-score, median (IQR) −0.08 (−0.78 to 0.93) 0.13 (−0.45 to 0.73) 0.41 (−0.30 to 0.93)
Race/ethnicity, n (%)      
 White, non-Hispanic 23 (92) 46 (94) 60 (75)
 Black 0 (0) 1 (2) 6 (7)
 Asian 0 (0) 0 (0) 3 (4)
 Hispanic 2 (8) 2 (4) 8 (10)
 Other 0 (0) 0 (0) 3 (4)
Acceptable MBW 18 (72) 37 (76) 60 (75)
Acceptable spirometry 23 (92) 47 (96) 73 (91)

Definition of abbreviations: BMI = body mass index; CF = cystic fibrosis; HC = healthy control; IQR = interquartile range; MBW = multiple breath washout; PCD = primary ciliary dyskinesia.

*

The initial cohort included 45 historical study participants.

Calculated using Centers for Disease Control and Prevention reference data.