It is very uncertain whether A dose of vitamin D 601 IU or higher changes low birthweight compared with 600 IU or lower alone or with other nutrients (very low certainty).
High feedback showed no clear difference in maternal anxiety ‐ throughout pregnancy compared with low feedback of routine prenatal ultrasound (low certainty).
High feedback may leads to higher cessation of alcohol compared with low feedback of routine prenatal ultrasound (low certainty).
High feedback may leads to higher cessation of smoking compared with low feedback of routine prenatal ultrasound (low certainty).
It is very uncertain whether high feedback changes women's views of level of feedback compared with low feedback of routine prenatal ultrasound (very low certainty).
The review found no eligible studies for this question.
Prevention of eclampsia: higher showed no clear difference in side effects compared with lower IV maintenance regimen (low certainty).
The review found no eligible studies for this question.
The review found no eligible studies for this question.
The review found no eligible studies for this question.
A dose of vitamin D 601 IU or higher showed no clear difference in pre‐eclampsia compared with 600 IU or lower alone or with other nutrients (low certainty).
A dose of vitamin D 601 IU or higher probably leads to lower gestational diabetes compared with 600 IU or lower alone or with other nutrients (moderate certainty).
A dose of vitamin D 601 IU or higher showed no clear difference in preterm birth compared with 600 IU or lower alone or with other nutrients (low certainty).