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Table 3 Models of percent predicted FEV1 over the menstrual segment stratified by phase (n = 13)

From: Studying forced expiratory volume at 1 second over menstrual segments in asthmatic and non-asthmatic women: assessing protocol feasibility

  Beta (s.e.) p-value
Follicular phase   
Intercept 91.8 (2.6) <0.001
Number of days relative to estimated day of ovulation −0.49 (0.11) <0.001
Luteal phase   
Intercept 90.6 (2.9) <0.001
Number of days relative to estimated day of ovulation 0.02 (0.10) 0.84
5 Days prior to Onset of Menses   
Intercept 92.7 (3.6) <0.001
Number of days relative to onset of Menses −0.02 (0.45) 0.97