The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 3 Comparison between males and females as regards serum vitamin B12

From: Association between vitamin B12 level and clinical peripheral neuropathy in type 2 diabetic patients on metformin therapy

Groups	Gender	Serum vitamin B12
Groups	Gender	Mean ± SD	P value*
Both groups (n = 100)	Males	595.3 ± 368.2	0.001
Both groups (n = 100)	Females	894.4 ± 477.6	0.001
Metformin group (n = 50)	Males	512.4 ± 258.2	0.140
Metformin group (n = 50)	Females	687.3 ± 402.0	0.140
Non-metformin group (n = 50)	Males	731.0 ± 483.3	0.045
Non-metformin group (n = 50)	Females	± 471.8	0.045

^*Mann–Whitney U test
P value < 0.05 significant; P value < 0.01 highly significant

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