Effects of Passive Hydrotherapy WATSU (WaterShiatsu) in the Third Trimester of Pregnancy: Results of a Controlled Pilot Study

Table 4

Analyses of medium-term changes in outcome measures between the intervention and the control group.

Variables^a	values			Cohen’s
	From baseline (day 1) to follow-up (day 8)
	Intervention group	Control group
PSS score^c	−2.1 (±2.2)	+.9 (±3.2)	0.036	0.57
SF-36 main scales^d
(i) Physical component	−1.6 (±6.6)	+.2 (±6.4)	0.500
(ii) Mental component	+3.3 (±4.0)	+3.1 (±3.6)	0.923

All continuous data are presented as mean (SD).
^b values refer to Mann-Whitney test. P > 0.05; CI 95%.
^cPSS, Perceived Stress Scale; positive mean change values represent an increase in perceived stress.
^dSF-36, Medical Outcomes Study 36-Item Short-Form Health Survey; positive mean change values represent an increase in health related quality of life.