Variables | Non-metformin group n = 50 | Metformin group n = 50 | P value |
---|---|---|---|
Gender | |||
Female | 39 (78%) | 32 (64%) | 0.123 |
Male | 11 (22%) | 18 (36%) | |
Age (years) | 53.3 ± 7.9 | 53.2 ± 7.2 | 0.926 |
Diabetes duration (years) | 6.3 ± 5.0 | 7.3 ± 5.1 | 0.295 |
Estimated vitamin B12 daily intake (mcg) | 7.1 ± 16.5 | 5.4 ± 4.5 | 0.535 |
Adequacy of vitamin B12 daily intake (≥ 2.4 mcg) n (%) | 36 (72%) | 35 (70%) | 0.826 |
Serum vitamin B12 (pg/ml) | 991.0 ± 489.9 | 624.3 ± 364.1 | < 0.001 |
Vitamin B12 deficiency n (%) | 1 (2%) | 2 (4%) | 1.000 |
HbA1c (%) | 8.6 ± 2.3 | 7.6 ± 2.0 | 0.03 |
Peripheral Neuropathy frequency n (%) | 32 (64%) | 36 (72%) | 0.391 |
TCSS neuropathy score | 7.7 ± 3.7 | 7.8 ± 3.4 | 0.910 |
TCSS grade | |||
Normal (0–5) | 18 (36%) | 14 (28%) | |
Mild (6–8) | 12 (24%) | 17 (34%) | 0.452 |
Moderate (9–11) | 14 (28%) | 10 (20%) | |
Sever (12–19) | 6 (12%) | 9 (18%) |