Characteristic
Case (N=44)
Control (N=44)
P value
Frequent VVS (N=28) Infrequent VVS (N=16)
P value
Vitamin B12 (pg/mL) 259.7 (100.8) 238.0 (82.7) 0.271 233.8 (80.7) 305.2 (118.1) 0.042
Folate (ng/mL) 7.8 (3.7) 7.4 (3.0) 0.526 8.1 (4.1) 7.4 (2.9) 0.530
Homocysteine (µmol/L) 15.6 (10.0) 13.5 (5.1) 0.234 14.6 (7.1) 17.2 (13.8) 0.505
Vitamin B12 deficiency 10 (22.7%) 15 (34.1%) 0.237 8 (28.6%) 2 (12.5%) 0.283*
Folate deficiency 2 (4.5%) 0 (0%) 0.494* 1 (3.6%) 1 (6.3%) 1.000*
Vitamin B12/Folate deficiency 18 (40.9%) 22 (50.0%) 0.392 13 (46.4%) 5 (31.3%) 0.325
TSH (U/mL) 2.3 (1.4) 2.3 (1.7) 0.947 2.1 (1.2) 2.6 (1.7) 0.254