Serum mineral levels among Nepalese living in the southern agricultural Terai region.

The physical status and serum mineral concentrations for people aged 10 to 68 years living in an agricultural southern region of Nepal were determined. Systolic (SBP) and diastolic blood pressure (DBP) for both sexes in the 10-14 year age group were low (p<0.05. vs the other age groups) and those for the over 50-year-olds tended to be higher than the other age groups. The mean values of total proteins (TP) (8.6 ± 0.5 g/dl for males and 8.7 ± 0.6 g/dl for females) were high due to an increase of globulin (3.9 ± 0.4 g/dl for males and 4.1 ± 0.5 g/dl for females). More than three-fourths of the subjects of both sexes showed calcium (Ca) levels of 9.0-11.2 mg/dl and about 65% of them showed potassium (K) levels of 4.8-5.4 mEq/1. A significant positive correlation between DBP and serum K was observed (p<0.05). Serum inorganic phosphorus (IP) correlated with age (p<0.001) and body mass index (BMI) (p<0.001). The serum Ca levels correlated with TP (r=0.31, p<0.001), albumin (Alb) (r=0.50, p<0.001), IP (r=0.31, p<0.001), K (r=0.32, p<0.001) and chlorine (Cl)(r=-0.37, p<0.001). Cl was associated with TP (r=-0.21, p<0.05), Alb (r=-0.36, p<0.001) and IP (r=-0.21, p<0.05). These results suggested that Ca intake for the subjects seemed to be insufficient although their serum Ca level was within normal.