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Table 1 Characteristics of subjects in methionine load test study

From: Variability of plasma and urine betaine in diabetes mellitus and its relationship to methionine load test responses: an observational study

  N Median Full range
Females with diabetes:    
Age (y) 14 67.5 60 – 74
Body Mass Index 14 27.0 17.1 - 37.6
Fasting plasma glucose (μmol/L) 14 7.4 5.5 - 10.2
Serum vitamin B12 (pmol/L) 14 337 215 – 587
Red cell folate (nmol/L) 14 677 508 – 964
Hemoglobin A1c (%) 14 7.75 6.7 - 9.8
Males with diabetes:    
Age (y) 20 69 51 – 75
Body Mass Index 20 27.2 22.1 - 42.3
Fasting plasma glucose (μmol/L) 20 7.85 4.8 - 14.8
Serum vitamin B12 (pmol/L) 20 330.5 129 – 697
Red cell folate (nmol/L) 20 655.5 406 – 1046
Hemoglobin A1c (%) 20 7.4 5.3 - 9.0
Female control subjects:    
Age (y) 7 63 55 – 69
Body Mass Index 7 28.7 24.9 - 33.5
Fasting plasma glucose (μmol/L) 7 4.5 3.9 - 5.8
Serum vitamin B12 (pmol/L) 7 357 302 – 580
Red cell folate (nmol/L) 7 840 546 – 1071
Male control subjects:    
Age (y) 10 57 54 – 66
Body Mass Index 10 26.8 21.1 - 36.5
Fasting plasma glucose (μmol/L) 10 4.75 3.9 - 5.8
Serum vitamin B12 (pmol/L) 10 355.5 227 – 837
Red cell folate (nmol/L) 10 847 507 – 971