Table 4 Moderation analysis taking each perfectionism subscale as the independent variable, self-esteem as the moderator and avoidant restrictive eating as the dependent variable

Model 1: Rigid perfectionism as the independent variable.

Rigid perfectionism

0.99

2.33

0.020

0.16; 1.82

1.99

2.51

0.013

0.42; 3.55

0.61

1.21

0.228

− 0.38; 1.60

Self-esteem

0.99

0.70

0.488

-1.80; 3.77

2.87

1.06

0.290

-2.47; 8.22

0.27

0.16

0.871

-3.01; 3.55

Interaction rigid perfectionism by self-esteem

− 0.15

-1.36

0.174

− 0.37; 0.07

− 0.37

-1.75

0.083

− 0.78; 0.05

− 0.07

− 0.54

0.587

− 0.33; 0.19

Model 2: Self-critical perfectionism as the independent variable.

Self-critical perfectionism

0.67

2.36

0.019

0.11; 1.24

1.14

2.02

0.045

0.03; 2.24

0.52

1.57

0.116

− 0.13; 1.18

Self-esteem

0.77

0.56

0.573

-1.91; 3.45

1.49

0.56

0.576

-3.75; 6.72

0.56

0.35

0.723

-2.56; 3.69

Interaction self-critical perfectionism by self-esteem

− 0.08

-1.01

0.312

− 0.23; 0.07

− 0.15

− 0.97

0.334

− 0.45; 0.15

− 0.06

− 0.63

0.530

− 0.23; 0.12

Model 3: Narcissistic perfectionism as the independent variable.

Narcissistic perfectionism

1.34

4.57

< 0.001

0.76; 1.91

1.84

3.19

0.002

0.70; 2.98

1.13

3.30

0.001

0.46; 1.80

Self-esteem

2.69

2.05

0.041

0.12; 5.27

3.89

1.50

0.135

-1.22; 9.00

2.25

1.46

0.144

− 0.77; 5.27

Interaction narcissistic perfectionism by self-esteem

− 0.22

-2.77

0.006

− 0.38; − 0.07*

− 0.32

-2.00

0.047

− 0.64; − 0.004*

− 0.18

-1.97

0.049

− 0.37; − 0.001*