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. 2017 Mar 17;9(3):296. doi: 10.3390/nu9030296

Table 1.

Means and distributions of serum magnesium concentrations by sex and age in the Canadian population.

Sex and Age n Serum Magnesium Distribution of Serum Magnesium Concentrations
5th 10th 25th 50th 75th 90th 95th
Arithmetic Mean 1 95% CI Estimate 95% CI Estimate 95% CI Estimate 95% CI Estimate 95% CI Estimate 95% CI Estimate 95% CI Estimate 95% CI
mmol·L−1
All 2
3–5 years 505 0.83 0.82, 0.84 0.74 0.72, 0.76 0.76 0.74, 0.77 0.78 0.77, 0.80 0.82 0.80, 0.84 0.86 0.84, 0.88 0.90 0.87, 0.93 0.92 0.90, 0.95
Male 3
6–11 years 493 0.83 a,* 0.82, 0.84 0.73 0.71, 0.76 0.76 0.73, 0.78 0.79 0.78, 0.81 0.83 0.82, 0.84 0.86 0.85, 0.88 0.88 0.86, 0.91 0.91 0.88, 0.94
12–19 years 490 0.80 c 0.78, 0.81 0.71 0.68, 0.74 0.73 0.70, 0.75 0.76 0.72, 0.79 0.79 0.77, 0.81 0.83 0.80, 0.85 0.87 0.84, 0.89 0.88 0.87, 0.90
20–39 years 510 0.81 b,c,* 0.80, 0.82 0.69 0.64, 0.74 0.73 0.70, 0.76 0.77 0.74, 0.79 0.80 0.79, 0.82 0.84 0.83, 0.86 0.87 0.86, 0.89 0.90 0.87, 0.92
40–59 years 538 0.82 a,b,* 0.81, 0.83 0.71 0.68, 0.73 0.74 0.71, 0.77 0.78 0.76, 0.80 0.82 0.80, 0.84 0.86 0.84, 0.88 0.90 0.88, 0.92 0.91 0.88, 0.94
60–79 years 509 0.81 b 0.81, 0.82 0.69 0.67, 0.71 0.72 0.71, 0.74 0.77 0.75, 0.79 0.82 0.80, 0.84 0.86 0.84, 0.87 0.89 0.88, 0.91 0.91 0.89, 0.93
Female 3
6–11 years 455 0.82 a 0.81, 0.83 0.74 0.72, 0.76 0.75 0.73, 0.78 0.78 0.77, 0.80 0.82 0.80, 0.84 0.85 0.83, 0.86 0.88 0.86, 0.89 0.89 0.88, 0.90
12–19 years 486 0.79 d 0.78, 0.80 0.70 0.68, 0.72 0.72 0.70, 0.73 0.75 0.73, 0.77 0.78 0.77, 0.80 0.82 0.80, 0.83 0.86 0.84, 0.87 0.88 0.86, 0.90
20–39 years 511 0.80 c,d 0.79, 0.80 0.71 0.70, 0.72 0.73 0.71, 0.75 0.76 0.74, 0.78 0.79 0.77, 0.80 0.82 0.80, 0.84 0.85 0.82, 0.88 0.87 0.85, 0.89
40–59 years 532 0.81 b,c 0.80, 0.82 0.69 0.64, 0.74 0.72 0.69, 0.76 0.76 0.74, 0.78 0.81 0.79, 0.82 0.85 0.83, 0.87 0.88 0.86, 0.89 0.89 0.87, 0.92
60–79 years 532 0.82 a,b 0.81, 0.83 0.67 0.65, 0.69 0.71 0.69, 0.73 0.77 0.75, 0.79 0.82 0.80, 0.83 0.86 0.84, 0.88 0.90 0.88, 0.92 0.93 0.90, 0.97

1 Values in a column and within a sex group without a common superscript letter differ, p < 0.05. * Different compared to females in the same age group, p < 0.05; 2 Includes nonfasted males and females; 3 Includes fasted and nonfasted participants.