Sensitivity analysis

Diet ratio of n3/n6

Serum PL ratio of n3/n6

Intake ratio of n3/n6


N

Pooled RR (95% CI)

Heterogeneity

N

Pooled RR(95% CI)

Heterogeneity

N

Pooled RR(95% CI)

Heterogeneity



I
^{2} Degree

P

I
^{2} Degree

P

I
^{2} Degree

P


Exclusion of studies with potential selection bias [20, 32]

5

0.87 (0.80, 0.96)

0.00% (Low)

0.5s9

4

0.73 (0.51, 1.01)

0.00% (Low)

0.67

9

0.86 (0.79, 0.94)

0.00% (Low)

0.72

Exclusion of studies without covariates adjusted [18]

6

0.90 (0.82, 0.99)

17.30% (Low)

0.30

4

0.82 (0.56, 1.22)

36.50% (Low)

0.17

10

0.89 (0.81, 0.99)

19.10% (Low)

0.26

Contourenhanced funnel plots of fixed effect model

6

0.91 (0.84, 0.98)

17.30% (Low)

0.30

5

0.90 (0.68, 1.19)

21.50% (Low)

0.27

11

0.91 (0.84, 0.98)

11.40% (Low)

0.33

Contourenhanced funnel plots of random effect model

6

0.90 (0.82, 0.99)

17.30% (Low)

0.30

5

0.87 (0.63, 1.20)

21.50% (Low)

0.27

11

0.90 (0.82, 0.98)

11.40% (Low)

0.33


N = number of studies; P = P value for heterogeneity within subgroup.