Estimated net endogenous acid production and risk of prevalent and incident hypertension in community-dwelling older people

Table 4 Logistic regression linking to quartiles of energy adjusted estimated net endogenous acid production to incident hypertension (n = 795)

	Quartiles of energy adjusted estimated NEAP (g/mEq)				Ptrend1
	Q1 (n = 198)	Q2 (n = 201)	Q3 (n = 198)	Q4 (n = 198)
No. of case and control	78/120	80/121	75/123	77/121
Unadjusted OR (95%CI)	1 (reference)	1.02 (0.68-1.52)	0.94 (0.63-1.41)	0.98 (0.65-1.47)	0.842
Age and sex adjusted OR (95%CI)	1 (reference)	1.03 (0.69-1.54)	0.95 (0.63-1.43)	0.99 (0.66-1.49)	0.873
2Multivariable adjusted OR (95%CI)	1 (reference)	1.15 (0.74-1.80)	1.11 (0.66-1.86)	1.32 (0.72-2.43)	0.436

¹P_trend by entering quartiles of energy adjusted NEAP as a fixed factor and testing the contrast by using the polynomial option in all models;

²Model adjusted for age, sex, BMI, PASE, education level, smoking status, alcohol use, and quartiles of energy adjusted intakes of fiber, calcium, magnesium, potassium and sodium. NEAP: Net endogenous acid production; BMI: Body mass index; PASE: The Physical Activity Scale of the Elderly.