Vitamins A, C, E + selenium + zinc vs placebo
Vitamins A, C, E + selenium + zinc showed no clear difference in mortality: all causes compared with placebo (high certainty).
- RR 0.88 [0.7, 1.11]1 study · 12741 participantsHigh
Vitamins A, C, E + selenium + zinc showed no clear difference in mortality: all causes compared with placebo (high certainty).
Pyridoxal 5 phosphate (vitamin B6) may leads to higher clinical efficacy ‐ improvement (> 40%) in ESRS scores from baseline… compared with placebo (low certainty).
Pyridoxal 5 phosphate (vitamin B6) showed no clear difference in global: Other adverse effects than tardive dyskinesia Self‐report by… compared with placebo (low certainty).
Pyridoxal 5 phosphate (vitamin B6) showed no clear difference in tardive dyskinesia: Deterioration in tardive dyskinesia symptoms ESRS1 compared with placebo (low certainty).
The review found no eligible studies for this question.
Vitamin K antagonist (VKA) prophylaxis showed no clear difference in mortality at 6 months: main analysis compared with no prophylaxis (moderate certainty).
Vitamin K antagonist (VKA) prophylaxis showed no clear difference in mortality compared with no prophylaxis (moderate certainty).
It is very uncertain whether vitamin K antagonist (VKA) prophylaxis changes pulmonary embolism compared with no prophylaxis (very low certainty).
It is very uncertain whether vitamin K antagonist (VKA) prophylaxis changes symptomatic deep vein thrombosis compared with no prophylaxis (very low certainty).
Vitamin K antagonist (VKA) prophylaxis probably leads to higher major bleeding compared with no prophylaxis (moderate certainty).
Vitamin K antagonist (VKA) prophylaxis probably leads to higher minor bleeding compared with no prophylaxis (moderate certainty).
The review found no eligible studies for this question.
Fondaparinux plus vitamin K antagonist showed no clear difference in recurrent venous thromboembolism compared with standard therapy (moderate certainty).
Fondaparinux plus vitamin K antagonist showed no clear difference in major bleeding during the initial treatment compared with standard therapy (moderate certainty).
Fondaparinux plus vitamin K antagonist showed no clear difference in all‐cause mortality compared with standard therapy (moderate certainty).
The review found no eligible studies for this question.
It is very uncertain whether fondaparinux plus vitamin K antagonist changes all harmful effects compared with standard therapy (very low certainty).
It is very uncertain whether vitamin C 1400 mg plus vitamin E 800 mg changes frequency of pain crisis compared with placebo (very low certainty).