Table 4: Spirometry results of 3 menstrual cycle phases in premenstrual asthma.

Follicular phase
Value [IC 95%]
Luteal phase
Value [IC 95%]
Premenstrual phase
Value [IC 95%]
p
VC (l) 3.25 [3.13-3.39] 3.28 [3.16-3.44] 3.3 [3.19-3.47] 10-3
FVC (l) 3.24 [3.11-3.38] 3.27 [3.16-3.44] 3.3 [3.16-3.48] 0.62
PEF (l/s) 6.30 [5.93-6.65] 6.3 [5.96-6.79] 6.26 [6-6.77] 0.55
FEV1 (l) 2.84 [2.74-2.97] 2.83 [2.75-3] 2.84 [2.74-3.03] 0.84
FEV1/VC (%) 87.72 [85.92-89.79] 86.23 [84.28-88.62] 85.98 [83.78-88.27] 0.25
FEF75 (l) 5.69 [5.35-6.15] 5.65 [5.17-6.23] 5.57 [5.2-6.19] 0.55
FEF50 (l) 3.8 [3.51-4.25] 3.74 [3.37-4.3] 3.71 [3.37-4.27] 0.78
FEF25 (l) 1.67 [1.44-1.90] 1.67 [1.53-1.90] 1.64 [1.49-1.84] 0.10
FEF25-75 (l) 3.38 [3.1-3.75] 3.25 [2.93-3.72] 3.24 [2.93-3.68] 0.55