Table 2 Comparison of positive and negative mood between groups and within groups receiving lavender and Placebo at any point in time and over time

Before

22.7 (3.35)

-

22.36 (3.01)

-

0.33 (-1.98 to 1.31)

0.687^&

28 days later

30.08 (5.91)

7.38 (5.23 to 9.52)

< 0.001

25 (3.56)

2.63 (1.29 to 3.97)

< 0.001

4.54 (2.06 to 7.02)

0.001

56 days later

30.84 (5.59)

8.14 (6.14 to 10.13)

< 0.001

24.6 (3.94)

2.24 (0.88 to 3.6)

0.002

5.85 (3.43 to 8.26)

< 0.001

P^***

<0.001

<0.001

Between the lavender and placebo groups

Mean difference

(95% CI)

P^****

P^*****

3.82 (1.81 to 5.83)

< 0.001

< 0.001

Negative PANAS

Lavender

Placebo

Lavender & placebo

Mean

(SD)

Mean change

(95% CI)

P^*

Mean

(SD)

Mean change

(95% CI)

P^*

Mean difference

(95% CI)

P^**

Before

27.36 (3.12)

26.8 (2.83)

-0.566 (-2.1 to 0.97)

0.465^&

28 days later

19.64 (3.89)

-7.72 (-9.43 to -6.01)

< 0.001

23.82 (3.33)

-2.97 (-4.44 to -1.5)

< 0.001

-3.5 (-5.33 to -1.68)

< 0.001

56 days later

19.28 (3.86)

-8.08 (-9.77 to -6.4)

< 0.001

23.86 (3.63)

-2.93 (-4.53 to -1.32)

0.001

-4.26 (-6.26 to -2.25)

< 0.001

P^***

<0.001

<0.001

Between the lavender and placebo groups

Mean difference

(95% CI)

P^****

P^*****

-2.23 (-3.61 to -0.85)

0.002

0.001