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. 2013 May 9;144(3):981–989. doi: 10.1378/chest.12-1404

Table 1.

—Descriptive Statistics for Demographic and Clinical Variables for Each PAC-CF Survey

Variables Time, mo
Baseline 3 6 9 13 18 21
Age, y 32.52 (10.65)
Female 55
White 94
Hispanic/Latino 4
Currently married 43
Completed post-high school degree 55
Employed or student 59
Annual household income
 ≤ $25,000 23
 $25,001-$49,999 14
 $50,000-$74,999 16
 ≥ $75,000 29 ...
 No response 18
Weight percentile 42.04 (29.81) 41.29 (29.13) 42.22 (29.63) 42.10 (29.54) 42.35 (29.70) 43.12 (28.88) 42.86 (29.16)
FEV1 % predicted 59.76 (22.40) 60.33 (22.90) 59.44 (23.61) 58.93 (21.73) 59.06 (22.56) 57.93 (22.20) 57.89 (22.46)
Exacerbations, No. 0.65 (0.99) 0.36 (0.77) 0.40 (0.71) 0.34 (0.66) 0.66 (1.22) 0.42 (0.86) 0.35 (0.86)
Pancreatic sufficient 12 13 12 11 11 12 14
With CF-related diabetes 15 15 15 23 21 23 22
With Staphylococcus aureus 35 38 41 40 44 44 45
With Burkholderia cepacia 8 9 9 10 10 11 10
With Pseudomonas aeruginosa 77 79 80 83 83 82 82

Data are presented as mean (SD) or %. Descriptive statistics were calculated using sample selection weights to adjust for the disproportionate stratified sampling design. CF = cystic fibrosis; PAC-CF = Project on Adult Care in Cystic Fibrosis.