Table 3. Hierarchical linear regression predicting decision regret (n=219).

Variable	B	SE	β	t	P	95%CI [Min, Max]	R2	ΔR2	Adj. R2
Block 1 (control variables)							0.027	–	0.013
Age	0.05	0.16	0.02	0.33	0.746	[-0.26, 0.36]
Number of cesarean sections	3.16	2.54	0.08	1.25	0.214	[-1.84, 8.16]
Post-cesarean recovery period	0.52	2.95	0.01	0.18	0.860	[-5.29, 6.33]
Block 2 (psychosocial variables)							0.306	0.279	0.279
Impact of scar appearance on body perception a	15.42	3.79	0.36	4.07	<0.001	[7.95, 22.88]
Impact of scar on social life a	6.96	4.15	0.13	1.68	0.096	[-1.23, 15.15]
Post-cesarean body satisfaction—Other a	3.23	3.22	0.06	1.00	0.318	[-3.12, 9.57]
Post-cesarean body satisfaction—No a	6.25	3.36	0.15	1.86	0.064	[-0.36, 12.87]
Psychological difficulties due to bodily changes	3.20	3.83	0.07	0.84	0.405	[-4.36, 10.76]
Block 3 (main predictor)							0.310	0.004	0.280
Body Image Scale	-0.08	0.08	-0.07	-1.09	0.277	[-0.24, 0.07]

Final model statistics: F(9, 209)=10.42, p<0.001; R²=0.310; Adj. R²=0.280; SEE=17.08; Durbin-Watson=1.90. Note: B: unstandardized coefficient; SE: standard error; β: standardized coefficient; p: significance level; R²: model R-squared; Adj. R²: adjusted R-squared; ΔR²: change in R-squared; CI: confidence interval. Dependent variable=Decision Regret Scale (DRS) total score.

^aReference categories: appearance of scar=“not bothered”; effect on body perception=“no”; effect on social/emotional life=“no”; body satisfaction=“satisfied”; body image change=“no change”. All dichotomous variables were coded as 0=reference and 1=comparison. Bold values indicate statistically significant results (p<0.05).