Variety and quantity of dietary protein intake from different sources and risk of new-onset diabetes: a Nationwide Cohort Study in China

Table 3 The association between variety score of protein sources and new-onset diabetes

Protein variety score	No. of case	Person-years	Model 1	P value	Model 2	P value
Protein variety score	No. of case	Person-years	HR (95%CI)	P value	HR (95%CI)	P value
Continuous (per score increment)	1100	158931	0.70 (0.67, 0.73)	<0.001	0.69 (0.65, 0.72)	<0.001
Quartile
Q1 (<2)	132	11346	Ref		Ref
Q2 (2)	245	24003	0.84 (0.67, 1.05)	0.125	0.87 (0.69, 1.09)	0.223
Q3 (3)	273	35956	0.54 (0.43, 0.67)	<0.001	0.55 (0.43, 0.69)	<0.001
Q4 (≥4)	450	87625	0.30 (0.24, 0.37)	<0.001	0.30 (0.24, 0.37)	<0.001
P for trend			<0.001		<0.001
Categories
Q1 (<2)	132	11346	Ref		Ref
Q2–4 (≥2)	968	147584	0.45 (0.37, 0.54)	<0.001	0.49 (0.40, 0.60)	<0.001

Model 1: Adjusted for age, sex, BMI, and occupations at baseline, and cumulative average total energy intake
Model 2: Adjusted for variables in model 1 plus education level, region, smoking status, SBP, DBP, urban or rural residents, physical activity (low, moderate, high) at baseline, as well as cumulative average fiber intake, sodium to potassium intake ratio, and fat intake (% energy)

ISSN: 1741-7015