Their study investigated both state and trait anxiety, whereas the present study investigated only state anxiety, which better reflects anxiety in a specific situation. The results of these studies are consistent with those of the present study. Hur et al., evaluated the effects of aromatherapy on anxiety during labor in nulliparous women and found no difference in anxiety levels.9 The reason for this inconsistency could related to differences in the intervals used to evaluate state anxiety using the STAI.