Factor/item

Factor loading

F1

F2

F3

F4

Factor 1: Skill to form partnership with other important people

Q69

I tell my medical care provider (physician, nurse, nutritionist) of my intensions, e.g., how I want to manage my condition

0.811

−0.120

0.032

−0.015

Q67

I talk to my medical care provider (physician, nurse, nutritionist) about my physical wellness at visits

0.723

−0.047

0.057

−0.004

Q66

I consult with my medical care provider (physician, nurse, nutritionist) when I have problems

0.720

−0.020

−0.088

0.031

Q68

I follow what my medical care provider (physician, nurse, nutritionist) tells me

0.697

0.118

0.005

−0.017

Q65

I take into consideration the opinion of my family and people around me

0.632

0.149

−0.105

0.021

Q46

I have my family and those near me listen to me

0.571

−0.005

−0.002

0.085

Q49

I tell my family and those around me about things I want them to bear in mind regarding my meals and physical health

0.513

0.022

0.187

−0.034

Q64

I refer to the hospital meals and guidelines given to me

0.489

0.161

−0.067

0.132

Factor 2: Skill to prevent or cope with post-gastrectomy disorder

Q33

I eat easily digestible foods

−0.026

0.803

−0.020

−0.010

Q35

I try not to eat too much oily food

−0.025

0.747

0.002

0.012

Q36

I avoid foods that are too cold, too hot, spicy, etc.

−0.020

0.678

−0.023

0.038

Q30

I take smaller bites

0.110

0.665

0.014

−0.068

Q26

I take time over a meal

0.082

0.617

−0.045

0.086

Q29

I eat until I feel about 80% full to avoid over−eating

0.056

0.569

0.000

0.014

Q41

I take nutritious foods in small quantities

−0.060

0.541

0.167

−0.012

Factor 3: Skill to grasp issues accompanying post-gastrectomy disorder

Q7

I make judgments on whether or not I have developed dumping syndrome (abdominal bloating, abdominal pain, nausea, abdominal discomfort, dullness, cold sweat, dizziness, finger tremor, headache, etc.)

0.170

−0.043

0.747

−0.156

Q3

I am aware that changes in diet and body are likely to cause mental stress (impatience, frustration, anxiety, fear, depression, etc.)

−0.258

0.095

0.722

0.092

Q11

I make judgments on whether or not the changes in diet and body have caused mental stress (impatience, frustration, anxiety, fear, depression, etc.)

−0.021

0.203

0.708

−0.141

Q5

I am aware that my roles at home, work, and community are likely to change due to changes in diet and body

−0.049

−0.085

0.699

0.051

Q8

I make judgments on whether or not I have developed gastric reflux or heartburn

0.216

0.009

0.618

−0.153

Q6

I know how to adjust my roles at home, work, and community

0.109

−0.189

0.563

0.240

Q10

I make judgments on whether or not I have taken sufficient nutrition for the day

−0.023

0.154

0.491

0.125

Q2

I know how to prevent and treat symptoms that are likely to arise after gastric surgery (dumping syndrome, gastric reflux, diarrhea/constipation, weight loss, etc.)

−0.069

−0.055

0.469

0.306

Factor 4: Self-efficacy

Q58

I think I will be able to prevent and treat diarrhea and constipation in my own way

0.000

0.020

−0.048

0.824

Q59

I think I will be able to consume the daily required nutrition in my own way

0.043

0.048

−0.060

0.740

Q56

I think I will be able to prevent and treat dumping syndrome (abdominal bloating, abdominal pain, nausea, abdominal discomfort, dullness, cold sweat, dizziness, finger tremor, headache, etc.) in my own way

−0.032

0.080

0.105

0.713

Q61

I think I will be able to adjust my role within my family, my workplace, and the community in my own way for the sake of eating and health

0.188

−0.100

0.068

0.550

Correlations among factors

F1

F2

F3

F4

F1

-

0.486

0.448

0.439

F2

-

0.417

0.347

F3

-

0.469

F4

-