. 2019 Dec 2;14(12):e0225501. doi: 10.1371/journal.pone.0225501

Table 3. DH mean and standard deviation of the groups in the different evaluation times periods, using the evaporative stimulus.

Treatment (n = 80)	Baseline	1st session	2nd session	3rd session	One-month follow-up
Treatment (n = 80)	M (± SD)/ [% of DH reduction or increase on intragroup assessment]
PLACEBO (n = 20)	5.50 (± 2.35) ^Aa [–]	5.80 (± 2.95) ^Aa [+5.45]	4.55 (± 3.09) ^Aa [-17.27]	4.15 (± 3.17) ^Ba [-24.55]	3.60 (± 2.64) ^Ba [-34.55]
CPP-ACPF (n = 20)	5.75 (± 2.36) ^Aa [–]	4.50 (± 2.28) ^Ba [-21.74]	4.20 (± 2.31) ^Ba [-26.96]	3.45 (± 2.65) ^Bab [-40.00]	3.10 (± 2.69) ^Ba [-46.09]
PBM (n = 20)	6.40 (± 1.85) ^Aa [–]	4.55 (± 2.76) ^Ba [-28.91]	4.60 (± 2.37) ^Ba [-28.13]	3.60 (± 2.37) ^Bab [-43.75]	3.00 (± 1.84) ^Ba [-53.12]
CPP-ACPF+ PBM (n = 20)	6.95 (± 2.74) ^Aa [–]	5.15 (± 3.42) ^Ba [-25.90]	4.55 (± 2.95) ^Ba [-34.53]	2.55 (± 1.99) ^Bb [-63.31]	1.60 (± 1.73) ^Bb [-76.98]

Different upper case letters represent significant intragroup statistical difference (p≤0.05); Different lowercase letters represent significant intergroup statistical difference (p≤0.05); p values calculated by the mixed ANOVA test and multiple comparisons tests with the Bonferroni post-hoc test.