Table 2.

Muscle strength by tertiles (T) of PRAL, NEAP and DAL

	PRAL							NEAP							DAL
	T1	T2	T3	P	P1	P2	P3	T1	T2	T3	P	P1	P2	P3	T1	T2	T3	P	P1	P2	P3
	Mean ± SD	Mean ± SD	Mean ± SD					Mean ± SD	Mean ± SD	Mean ± SD					Mean ± SD	Mean ± SD	Mean ± SD
MSL (kg)	27.5 ± 10.4	28.5 ± 11.1	33.3 ± 12.2	0.001	0.22	0.22	0.28	27.2 ± 10.0	28.5 ± 11.1	33.6 ± 12.4	< 0.001	0.79	0.80	0.83	26.9 ± 9.88	28.9 ± 11.4	33.6 ± 12.2	< 0.001	0.31	0.32	0.36
MSR (kg)	30.1 ± 11.6	31.0 ± 11.7	35.9 ± 12.7	0.003	0.24	0.25	0.30	30.1 ± 12.0	30.8 ± 11.2	36.1 ± 12.7	0.002	0.54	0.54	0.54	29.4 ± 11.1	31.4 ± 11.9	36.2 ± 12.7	0.001	0.35	0.36	0.43
MMS (kg)	28.8 ± 10.8	29.8 ± 11.2	34.6 ± 12.2	0.001	0.20	0.21	0.26	28.7 ± 10.8	29.6 ± 11.0	34.8 ± 12.4	0.001	0.66	0.66	0.68	28.1 ± 10.3	30.1 ± 11.5	34.9 ± 12.3	< 0.001	0.30	0.31	0.36

P1: Adjusted for age, sex, education, occupation, marriage, Living situation, smoking, fat mass and physical activity

P2: Adjusted for age, sex, education, occupation, marriage, Living situation, smoking, fat mass, physical activity and red meat

P3: Adjusted for age, sex, education, occupation, marriage, Living situation, smoking, fat mass, physical activity, red meat and energy intake

PRAL Potential renal acid load, NEAP Net endogenous acid production, DAL Dietary acid load, MSL muscle strength of left hand, MSR muscle strength of right hand; MMS, mean Muscle strength