Characteristics | Cases | Controls | p-value |
Males | 15/30 (50) | 30/60 (50) | |
Mean age years | 17.3 (14.7–19.9)¶ | 17.4 (15.6–19.2)+ | 0.8 |
ΔF508/ΔF508 | 16/27 (59.26) | 34/52 (65.38) | 0.3 |
Mean BMI | 18.4 (17.1–19.7)¶ | 18.3 (17.6–9.1)§ | 1.0 |
Mean FEV1 % pred | 54.4 (46.7–62.1)ƒ | 64.4 (57.6–71.3)## | 0.07 |
Use of pancreatic enzymes# | 29/29 (100) | 57/60 (95.0) | |
Mean concentration of chloride in sweat mmol | 110.5 (97.7–123.4)¶¶ | 104.7 (94.2–115.3)++ | 0.5 |
Data are presented as n/N (%) or mean (95% confidence interval), unless otherwise stated. BMI: body mass index; FEV1: forced expiratory volume in 1 s; % pred: % predicted. #: the log-likelihood ratio test was not applicable because there were no nonexposed cases matched to exposed controls; ¶: n=30; +: n=60; §: n=59; ƒ: n=27; ##: n=53; ¶¶: n=26; ++: n=42.