Summary of findings for the main comparison. Preconception care versus standard care for diabetic women: outcomes for the woman.
| Preconception care versus standard care for diabetic women for improving maternal and infant health: women's outcomes | ||||||
| Patient or population: adolescent girls with type 1 or type 2 diabetes Setting: USA Intervention: preconception care Comparison: standard care | ||||||
| Outcomes | Anticipated absolute effects* (95% CI) | Relative effect (95% CI) | № of participants (studies) | Quality of the evidence (GRADE) | Comments | |
| Risk with standard care | Risk with preconception care | |||||
| Pregnancy | Study population | not estimable | 109 (1 RCT) | ⊕⊝⊝⊝ Very low1,2 | No pregnancies reported in 1 RCT In 2 additional RCTs pregnancy was an exclusion criterion or was not clearly reported |
|
| 0 per 1000 | 0 per 1000 (0 to 0) | |||||
| Hypertensive disorders of pregnancy | Study population | not estimable | (0 studies) | ‐ | ||
| 0 per 1000 | 0 per 1000 (0 to 0) | |||||
| Caesarean section | Study population | not estimable | (0 studies) | ‐ | ||
| 0 per 1000 | 0 per 1000 (0 to 0) | |||||
| Perineal trauma | Study population | not estimable | (0 studies) | ‐ | ||
| 0 per 1000 | 0 per 1000 (0 to 0) | |||||
| Gestational weight gain | Study population | not estimable | (0 studies) | ‐ | ||
| 0 per 1000 | 0 per 1000 (0 to 0) | |||||
| Cardiovascular health | Study population | not estimable | (0 studies) | ‐ | ||
| 0 per 1000 | 0 per 1000 (0 to 0) | |||||
| Induction of labour | Study population | not estimable | (0 studies) | ‐ | ||
| 0 per 1000 | 0 per 1000 (0 to 0) | |||||
| *The risk in the intervention group (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI). CI: Confidence interval; RCT: randomised controlled trial; RR: Risk ratio | ||||||
| GRADE Working Group grades of evidence High quality: we are very confident that the true effect lies close to that of the estimate of the effect Moderate quality: we are moderately confident in the effect estimate: the true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different Low quality: our confidence in the effect estimate is limited: the true effect may be substantially different from the estimate of the effect Very low quality: we have very little confidence in the effect estimate: the true effect is likely to be substantially different from the estimate of effect | ||||||
1The study had design limitations (‐1). 2No events and small sample size (‐2).