Table 4.

Comparisons of outcomes’ differences across study groups^a.

Measurements (mean ± SD)	PSAI group (N = 25)	Control group (N = 20)	95% CI	p value	Effect size
ΔBMI score	- 0.77 ± 0.86	0.35 ± 1.73	−1.93,-0.16	0.037*	0.3
ΔPSS score	−15.6 ± 10.09	2.6 ± 8.44	−23.86, −10.83	0.000*	0.8
ΔDepression score	−3.7 ± 5.22	−0.2 ± 2.27	−6.35, −0.67	0.017*	0.4
Δanxiety score	−3.95 ± 5.99	0.53 ± 1.12	−7,54, −1.35	0.007*	0.5
Δstress score	−4.5 ± 5.52	−0.26 ± 0.72	−7.20, −1.04	0.003*	0.5
ΔFACT-B scoreb	44.05 ± 17.04	−11.2 ± 17.99	40.16, 65.31	0.004*	0.6
ΔPWB scoreb	7.1 ± 4.49	−3.86 ± 6.99	6.17, 14.27	0.025*	0.4
ΔSWB scoreb	5.25 ± 4.43	−0.13 ± 2.41	2.94, 7.93	0.001*	0.6
ΔEWB scoreb	8.7 ± 4.54	−2.06 ± 5.4	6.83, 13.89	0.002*	0.6
ΔFWB scoreb	10 ± 4	−2.06 ± 3.71	8.80, 14.32	0.001*	0.7
ΔBCC scoreb	13 ± 4.24	−3.06 ± 3.91	12.11, 18.38	0.001*	0.6
ΔPSQI score	−4.21 ± 6.45	2.35 ± 3.75	−10.66, −2.47	0.002*	0.6
ΔHLPCQ scoreb	17.4 ± 12.65	−3.86 ± 6.23	12.86, 27.43	0.004*	0.6
ΔHCC	−8.14 ± 5.83	1.17 ± 3.46	−12.67, −5.95	0.000*	0.7

BCC: Breast Cancer Concerns, BMI: Body Mass Index, EWB: Emotional Well-Being, FACT-B: Functional Assessment in Cancer Treatment-Breast, FWB: Functional Well-Being, HCC: Hair Cortisol Concentration, HLPCQ: Healthy Lifestyle and Personal Control Questionnaire, PSAI: Pythagorean Self-Awareness Intervention, PSS: Perceived Stress Scale, PSQI: Pittsburgh Sleep Quality Index, PWB: Physical Well-Being, SD: Standard Deviation, SWB: Social Well-Being.

*Level of significance p < 0.05.

Effect size is calculated as rho = Z/N^0.5.

^aNon-parametric Mann-Whitney U tests for categorical by numerical comparisons.

^bPositive difference on these scales indicate improvement.