Table 2.

Measures of net endogenous acid production, potential renal acid load, and single determinants of net acid excretion

Variable	Value
Dietary intake
Energy, Kcal/d	2164 ± 211 (1731 to 2547)
NEAPR, mEq/d	35 ± 37 (–30 to 75)
NEAPF, mEq/d	58 ± 26 (9 to 92)
NEAPL, mEq/d	41 ± 30 (13 to 73)
NEAPS, mEq/d	17 ± 30 (–35 to 45)
PRAL, mEq/d	–5 ± 37 (–70 to 32)
PRALS, mEq/d	–29 ± 37 (92 to 4)
OAdiet, mEq/d	46 ± 7 (38 to 59)
OAanthro, mEq/d	40 ± 2 (35 to 44)
Sulphatedieta, mEq/d	28 ± 3 (22 to 33)
Proteindietb, mEq/d	51 ± 5 (41 to 60)
Phosphorusdieta, mEq/d	37 ± 4 (30 to 44)
Potassiumdieta, mEq/d	82 ± 37 (39 to 154)
Magnesiumdieta, mEq/d	5 ± 0 (4 to 5)
Calciumdieta, mEq/d	7 ± 1 (6 to 8)
Urinary excretion
NAE, mEq/d	39 ± 38 (–9 to 95)
UNEAP, mEq/d	37 ± 39 (–38 to 94)
UPRAL, mEq/d	–25 ± 42 (–103 to 30)
OAurine, mEq/d	61 ± 7 (48 to 77)
Sulphateurine, mEq/d	34 ± 3 (28 to 40)
Phosphorusurine, mEq/d	67 ± 8 (50 to 83)
Potassiumurine, mEq/d	87 ± 43 (40 to 176)
Magnesiumurine, mEq/d	17 ± 3 (13 to 22)
Calciumurine, mEq/d	21 ± 9 (7 to 49)

NAE, net acid excretion; NEAP_, net endogenous acid production estimated by dietary records where NEAP_R pertains to the equation by Remer and Manz,⁷ NEAP_F to the equation by Frassetto et al.,⁶ NEAP_L to a model attributed to Lemann,11, 12, 13 and NEAP_S to the equation by Sebastian et al.⁹; PRAL, potential renal acid load estimated by dietary intake where PRAL is the equation by Remer and Manz,⁷ and PRAL_S pertains to the equation by Sebastian et al.⁹_UNEAP, net endogenous acid production determined by urine analysis; _UPRAL, potential renal acid load determined by urine analysis; OA, organic acids where OA_anthro pertains to the anthropometrical estimate by Manz et al.,¹⁰ and OA_diet to the estimative equation by Kleinman and Lemann.¹¹

^aAdjusted for intestinal absorption using multipliers specified in PRAL_S.

^bAdjusted for intestinal absorption using multipliers specified in PRAL.