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Table 2 Comparison of gag reflex values before and after each intervention (mean ± SD)

From: Effect of aromatherapy with peppermint essential oil on the gag reflex: a randomized, placebo-controlled, single-blind, crossover study

Intervention

Baseline (mm)

After intervention (mm)

P value*

Placebo

83.6 ± 11.8

86.4 ± 13.5

0.01

Aromatherapy

83.0 ± 13.4

89.8 ± 14.6

<0.001

Positive control

83.8 ± 12.6

89.7 ± 13.2

<0.001

  1. * Paired t-test; SD: standard deviation
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BMC Complementary Medicine and Therapies

ISSN: 2662-7671

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