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. Author manuscript; available in PMC: 2022 Aug 5.
Published in final edited form as: Sleep Med. 2019 Jul 23;65:134–141. doi: 10.1016/j.sleep.2019.07.014

Table 3.

Percentiles and means for variables during Long and Short sleep weeks (Q1=25th percentile, Q2=50th percentile, Q3=75th percentile), and mean comparisons using paired t-tests.

Long Short L vs S
Mean Min Q1 Q2 Q3 Max Mean Min Q1 Q2 Q3 Max p
Questionnaires*
 ACQ, Total Score 0.66 0 0 0.33 1.00 2.67 0.74 0 0.17 0.50 1.33 2.83 0.32
 PAIS, T-Score 40.37 31.5 31.5 37.7 46.2 64.0 41.82 31.5 31.5 39.7 48.4 65.2 0.07
Spirometry (pre-albuterol)
 FEV1, % pred. 96.8 57.3 89.4 97.3 106.7 122.7 96.9 67.7 90.9 97.5 104.9 120.3 0.91
 FVC, % pred. 102.6 74.0 94.8 101.0 110.2 131.1 102.7 80.2 95.1 101.9 110.8 130.4 0.83
 FEV1 / FVC ×100 82.7 61.0 78.0 84.0 89.0 98.0 82.9 56.0 80.0 85.0 88.0 94.0 0.73
eNO, ppb 34.6 6.0 14.0 26.0 43.0 130.0 37.1 5.0 13.0 23.0 45.0 153.0 0.21
Cytokines
 IL-1, fg/ml 9.3 0.45 4.0 5.0 10.4 63.3 10.0 0.7 4.1 6.5 12.0 56.4 0.52
 IL-6, pg/ml 0.20 0.05 0.11 0.18 0.24 0.67 0.21 0.03 0.11 0.14 0.21 1.30 0.51
 CRP, μg/ml 1.04 0.01 0.13 0.38 1.13 5.85 0.86 0.02 0.12 0.30 0.89 6.52 0.20
 TNF-alpha, pg/ml 1.58 0.8 1.3 1.5 1.8 2.6 1.59 0.9 1.3 1.6 1.8 2.7 0.69
*

ACQ: Asthma Control Questionnaire; PAIS: PROMIS Asthma Impact Scale

fg: femtograms; pg: picograms; μg: micrograms

Based on paired t-tests; for right-skewed cytokine variables (IL-1, IL-6, CRP) paired t-tests were performed on differences of natural-logged variables.