Table 2.

Associations of PDI with possible low muscle mass among whole sample

Indicators	Model 1	Model 2	Model 3	Model 4
PDI	0.94 (0.92–0.96) ***	0.94 (0.92–0.97) ***	0.94 (0.92–0.96) ***	0.95 (0.92–0.97) ***
Plant-based food score	0.94 (0.92–0.97) ***	0.95 (0.92–0.97) ***	0.95 (0.96–0.97) ***	0.95 (0.94–0.98) ***
Animal-based food score	0.98 (0.94–1.02)	0.96 (0.92–1.01)	0.96 (0.92–1.01)	0.96 (0.92–1.01)

Abbreviations: PDI plant-based dietary index, HR hazard ratios, 95%CI0 95% confidence intervals

Model 1: controlled for baseline ASM, gender and age

Model 2: controlled for baseline ASM, gender, age, residence, hunger in childhood, and education

Model 3: controlled for baseline ASM, gender, age, residence, hunger in childhood, education, BADL disability, IADL disability, regular physical examination, MMSE score, and current smoking, drinking, and exercise

Model 4: controlled for baseline ASM, gender, age residence, hunger in childhood, education, BADL disability, IADL disability, regular physical examination, MMSE score, and current smoking, drinking, and exercise, and history of disease

***: < 0.001