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. 2015 Dec 2;2015(12):CD009172. doi: 10.1002/14651858.CD009172.pub2

Summary of findings 2. MFS‐LE versus S‐LE for parenterally fed preterm infants.

MFS‐LE versus S‐LE for parenterally fed preterm infants(comparison 2)
Population: Parenterally fed preterm infants
Intervention: MFS‐LE
Comparison: S‐LE
Outcomes Illustrative comparative risks* (95% CI) Relative effect (95% CI) Number of participants (studies) Quality of the evidence (GRADE) Comments
Assumed risk Corresponding risk
S‐LE (control) MFS‐LE
Death before discharge
Follow‐up: birth until discharge Moderate risk^
(based on median control risk in S‐LE group in all studies)
RR 5 
(0.25 to 99.95) 60
(1 study) ⊕⊕⊝⊝
low1,2 Downgraded 2 levels for imprecision
73 per 1000# 365 per 1000 
(18 to 1000)
Days to regain birth weight
Follow‐up: birth until discharge The mean days to regain birth weight in the control group was 11 days The mean days to regain birth weight in the intervention groups was 1 day lower (3.6 lower to 1.6 higher)   57
(1 study) ⊕⊕⊝⊝
low1,3 Downgraded 2 levels for imprecision
Rate of weight gain
(g/kg/day)
Follow‐up: birth until 3 weeks
The mean rate of weight gain (g/kg/day) in the control group was 5.6 g/kg/day The mean rate of weight gain
(g/kg/day) in the intervention groups was 1.67 g/kg/day lower (7.01 lower to 3.67 higher)
  57
(1 study) ⊕⊕⊝⊝
low1,3 Downgraded 2 levels
for imprecision
Bronchopulmonary dysplasia/chronic lung disease
Follow‐up: birth until discharge Study population RR 1.39 
(0.42 to 4.65) 57
(1 study) ⊕⊕⊝⊝
low1,2 Downgraded 2 levels
for imprecision
133 per 1000 185 per 1000
(56 to 620)
Any sepsis (clinical and/or culture positive)
Follow‐up: birth until discharge Study population RR 1.11 
(0.31 to 4.02) 57
(1 study) ⊕⊕⊝⊝
low1,2 Downgraded 2 levels
for imprecision
133 per 1000 148 per 1000
(41 to 536)
Parenteral nutrition‐associated liver disease/cholestasis
Follow‐up: birth until discharge Moderate risk (based on median control risk in S‐LE group in all studies)^ RR 3.32 
(0.14 to 78.25) 57
(1 study) ⊕⊕⊝⊝
low1,2 Downgraded 2 levels
for imprecision
42 per 1000 139 per 1000
(6 to 1000)
*The corresponding risk (and its 95% CI) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
^The control rate was 0 for this outcome therefore the 'median control group risk' in all infants treated with S‐LE in all included studies (‘all alternative LE’) was used for calculating the corresponding risk .
MFS‐LE: medium chain triglycerides‐fish‐soy lipid emulsion; S‐LE: soy lipid emulsion; CI: confidence interval; RR: risk ratio
GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality: We are very uncertain about the estimate.

1 Optimal information size (OIS) not achieved.
2 Confidence intervals cross 0.75 or 1.25.
3 Wide confidence intervals crossing appreciable harm and benefit.