Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,640 questions · 2,709 findings · 446 reviews

No studies found 593 · 21.9%GRADE not reported 241 · 8.9%Very low 538 · 19.9%Low 706 · 26.1%Moderate 516 · 19%High 115 · 4.2%

Two doses of HPV vaccine with longer interval vs two doses of HPV vaccine with shorter interval

Serious adverse events at up to 5‐year · 9‐ to 14‐year‐old females and males

It is very uncertain whether two doses of HPV vaccine with longer interval changes serious adverse events at up to 5‐year compared with two doses of HPV vaccine with shorter interval (very low certainty).

1 finding from 1 review

Long protocol vs three weeks before stimulation

Live birth or ongoing pregnancy · women undergoing pituitary suppression in assisted reproduction

Long protocol: administration of GnRHa for two showed no clear difference in live birth and ongoing pregnancies per woman randomised compared with three weeks before stimulation (low certainty).

1 finding from 1 review

Long protocol vs three weeks before stimulation

Clinical pregnancy rate · women undergoing pituitary suppression in assisted reproduction

Long protocol: administration of GnRHa for two showed no clear difference in clinical pregnancies per woman randomised compared with three weeks before stimulation (low certainty).

1 finding from 1 review

Oral long‐chain omega‐3 PUFAs vs placebo or no treatment

Change in dry eye symptoms, measured using the OSDI score (ranging from 0 to 100 units, with a reduction in score indicating clinical improvement) at 1‐month (with actual · people with dry eyea

Oral long‐chain omega‐3 PUFAs (ie, EPA and DHA) showed no clear difference in change in dry eye symptoms, measured using the OSDI score (ranging… compared with placebo or no treatment (low certainty).

1 finding from 1 review

Oral long‐chain omega‐3 PUFAs vs placebo or no treatment

Change in ocular surface staining at 1‐month (with actual · people with dry eyea

Oral long‐chain omega‐3 PUFAs (ie, EPA and DHA) showed no clear difference in change in ocular surface staining at 1‐month (with actual compared with placebo or no treatment (low certainty).

1 finding from 1 review

Oral long‐chain omega‐3 PUFAs vs placebo or no treatment

Change in tear osmolarity (measured in mOsmol/L, with reductions in osmolarity indicating clinical improvement) at 1‐month (with actual · people with dry eyea

Oral long‐chain omega‐3 PUFAs (ie, EPA and DHA) showed no clear difference in change in tear osmolarity (measured in mOsmol/L, with reductions in… compared with placebo or no treatment (low certainty).

1 finding from 1 review

Maxillary sinus lift (augmentation) with long implants vs Short implants (5 to 8.5 mm) without sinus augmentation

Patient satisfaction · Patients with missing teeth and an atrophic posterior maxilla, with residual bone height between 4 and 9 mm below the maxillary sinus
1 finding from 1 review

Maxillary sinus lift (augmentation) with long implants vs Short implants (5 to 8.5 mm) without sinus augmentation

Treatment costs · Patients with missing teeth and an atrophic posterior maxilla, with residual bone height between 4 and 9 mm below the maxillary sinus

The review found no eligible studies for this question.

1 finding from 1 review

Maxillary sinus lift (augmentation) with long implants vs Short implants (5 to 8.5 mm) without sinus augmentation

Patient preference · Patients with missing teeth and an atrophic posterior maxilla, with residual bone height between 4 and 9 mm below the maxillary sinus
1 finding from 1 review

Maxillary sinus lift (augmentation) with long implants vs Short implants (5 to 8.5 mm) without sinus augmentation

Complications (at treated sites) · Patients with missing teeth and an atrophic posterior maxilla, with residual bone height between 4 and 9 mm below the maxillary sinus

Maxillary sinus lift (augmentation) with long implants may leads to higher complications (at treated sites) compared with short implants (5 to 8.5 mm) without sinus augmentation (low certainty).

1 finding from 1 review

Maxillary sinus lift (augmentation) with long implants vs Short implants (5 to 8.5 mm) without sinus augmentation

Augmentation procedure failure · Patients with missing teeth and an atrophic posterior maxilla, with residual bone height between 4 and 9 mm below the maxillary sinus
1 finding from 1 review

Maxillary sinus lift (augmentation) with long implants vs Short implants (5 to 8.5 mm) without sinus augmentation

Implant failure · Patients with missing teeth and an atrophic posterior maxilla, with residual bone height between 4 and 9 mm below the maxillary sinus

Maxillary sinus lift (augmentation) with long implants showed no clear difference in implant failure compared with short implants (5 to 8.5 mm) without sinus augmentation (moderate certainty).

1 finding from 1 review

Maxillary sinus lift (augmentation) with long implants vs Short implants (5 to 8.5 mm) without sinus augmentation

Prosthesis failure · Patients with missing teeth and an atrophic posterior maxilla, with residual bone height between 4 and 9 mm below the maxillary sinus

Maxillary sinus lift (augmentation) with long implants showed no clear difference in prosthesis failure compared with short implants (5 to 8.5 mm) without sinus augmentation (moderate certainty).

1 finding from 1 review