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Table 4 Congestion Quantifier 7 results (ITT population)

From: Effects of nasal dilator strips on subjective measures of sleep in subjects with chronic nocturnal nasal congestion: a randomized, placebo-controlled trial

CQ7a

Asymmetric placebo (n = 20)

BRNS clear (n = 20)

Asymmetric butterfly (n = 19)

Mean (SD) at baseline

19.20 (5.05)

18.70 (4.35)

16.79 (5.31)

Day 7

LS mean change from baseline (95% CI)

− 5.14 (− 7.53 to − 2.74)

− 6.85 (− 9.28 to − 4.41)

− 8.18 (− 10.75 to − 5.62)

P value for comparison with placebo

P = 0.2986

P = 0.0764

P value for comparison with BRNS

P = 0.4258

Day 14

LS mean change from baseline (95% CI)

− 5.10 (− 7.37 to − 2.83)

− 8.04 (− 10.34 to − 5.73)

− 6.92 (− 9.35 to − 4.49)

P value for comparison with placebo

P = 0.0623

P = 0.2607

P value for comparison with BRNS

P = 0.4820

  1. BRNS Breathe Right Nasal Strip, CI confidence interval, CQ7 Congestion Quantifier 7, ITT intent-to-treat, LS least square, SD standard deviation
  2. a CQ7 was calculated by adding the responses to the seven items on the CQ7 questionnaire for each subject. Each question was rated on a scale of 0 = none of the time, 1 = a little of the time, 2 = some of the time, 3 = most of the time, and 4 = all of the time