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Titolo:
Sodium is the leading dietary factor associated with urinary calcium excretion in Hong Kong Chinese adults
Autore:
Ho, SC; Chen, YM; Woo, JLF; Leung, SSF; Lam, TH; Janus, ED;
Indirizzi:
Chinese Univ Hong Kong, Dept Community & Family Med, Shatin, Hong Kong, Peoples R China Chinese Univ Hong Kong Shatin Hong Kong Peoples R China Peoples R China Chinese Univ Hong Kong, Dept Med & Therapeut, Shatin, Hong Kong, Peoples RChina Chinese Univ Hong Kong Shatin Hong Kong Peoples R China , Peoples RChina Chinese Univ Hong Kong, Dept Pediat, Shatin, Hong Kong, Peoples R China Chinese Univ Hong Kong Shatin Hong Kong Peoples R China Peoples R China Univ Hong Kong, Dept Community Med, Hong Kong, Hong Kong, Peoples R China Univ Hong Kong Hong Kong Hong Kong Peoples R China Kong, Peoples R China Univ Hong Kong, Clin Biochem Unit, Hong Kong, Hong Kong, Peoples R China Univ Hong Kong Hong Kong Hong Kong Peoples R China Kong, Peoples R China
Titolo Testata:
OSTEOPOROSIS INTERNATIONAL
fascicolo: 9, volume: 12, anno: 2001,
pagine: 723 - 731
SICI:
0937-941X(2001)12:9<723:SITLDF>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSTMENOPAUSAL WOMEN; HEALTHY-SUBJECTS; POTASSIUM INTAKE; BONE; POPULATION; PROTEIN; HYDROXYPROLINE; METABOLISM; DENSITY; MASS;
Keywords:
calcium; dietary intake; potassium; sodium; urine;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Ho, SC Chinese Univ Hong Kong, Prince Wales Hosp, Sch Publ Hlth, Dept Community &Family Med, 4-F, Shatin, Hong Kong, Peoples R China Chinese Univ Hong Kong 4-F Shatin Hong Kong Peoples R China China
Citazione:
S.C. Ho et al., "Sodium is the leading dietary factor associated with urinary calcium excretion in Hong Kong Chinese adults", OSTEOPOR IN, 12(9), 2001, pp. 723-731

Abstract

We conducted a cross-sectional population-based study comprising 1010 HongKong Chinese (500 men and 510 women) aged 25-74 years during 1995-6. The study examined the important dietary, lifestyle and anthropometric factors associated with urinary calcium excretion. Dietary intakes were assessed by means of food frequency questionnaire. Spot urine was collected to measure the urinary excretion profiles of calcium (Ca), sodium (Na), potassium (K) and creatinine (Cr). When expressed as ratios of cations to urinary Cr, significant relationships were noted between urinary Ca and Na (r: similar to 0.6), and between urinary Ca and K (r: 0.17-0.21). Stepwise multiple linearregression analyses were carried out separately in men and women aged below and above 50 years. We found that urinary Na/Cr was the leading independent factor associated with urinary Ca/Cr in all four age and sex groups. It accounted for 22% of urinary Ca/Cr variations in women aged below 50 years,and 35-43% in the other three age and sex groups. We estimated that urinary Ca excretion increased by about 1.4 (range 1.37-1.43) mmol per 100 mmol increase in urinary Na. Except in men aged 50 years and over, urinary K/Cr was inversely associated with urinary Ca/Cr in all groups. Age was independently and positively associated with urinary Ca/Cr in subjects aged below 50years. We did not observe any significant relation between urinary Ca/Cr and dietary protein, phosphorus, alcohol drinking and smoking. In conclusion, we found that urinary Na/Cr, but not dietary protein., Ca or phosphorus, is the most important factor influencing urinary Ca/Cr excretion in our population. Urinary K is a potential factor for Ca conservation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 11:34:54