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Table 2 Monthly averages of FEV1 compared to measurements at the baseline examination

From: How stable is lung function in patients with stable chronic obstructive pulmonary disease when monitored using a telehealth system? A longitudinal and home-based study

SubjectPredicted value (L)Baseline (L)Homea- First monthHomea- Last month
AMPMAMPM
11.700.850.820.790.920.85
23.481.010.540.770.580.77
32.430.850.970.990.991.04
41.790.950.840.910.750.84
51.890.71.030.831.100.84
61.951.210.810.790.830.78
72.891.760.860.900.870.90
82.570.540.890.990.840.97
93.002.040.970.890.810.79
102.551.680.660.630.670.65
113.252.050.880.770.760.77
Mean (SD)2.50 (0.61)1.24 (0.55)0.84 (0.14)0.84 (0.11)0.83 (0.14)0.84 (0.11)
  1. Values of home measurements are expressed as the ratio Home/Baseline (a), where Home is the monthly average of AM and PM measurements, respectively