| Fish/seafood intake | Publications | Pooled RR, 1 value | Heterogeneity 2 value |
3 value | Marine LC n-3 PUFA | Publications | Pooled RR, 1 value | Heterogeneity 2 value |
3 value |
| Ethnicity | | | | 0.18 | Ethnicity | | | | 0.064 | Asian (Chinese, Japanese) | 2 [12, 13] | 0.87, 0.006 | 0.83 | | Asian (Chinese, Japanese) | 2 [13, 19] | 0.87, 0.005 | 0.42 | | US/European | 8 [14–18, 20–22] | 1.10, 0.22 | 0.0001 | | US/European | 4 [14, 15, 18, 20] | 1.27, <0.00001 | 0.7 | | Length of follow-up (years) | | | | 0.17 | Length of follow-up (years) | | | | 0.064 | <10 | 4 [13, 16, 17, 21] | 0.91, 0.11 | 0.16 | | <10 | 2 [13, 19] | 0.87, 0.005 | 0.42 | |
≥10 | 6 [13–15, 18, 20, 22] | 1.17, 0.04 | 0.02 | | ≥10 | 4 [14, 15, 18, 20] | 1.27, <0.00001 | 0.7 | | Assessment of T2D | | | | 0.18 | Assessment of T2D | | | | NA | Confirmed by physician/phone interview/hospital records | 3 [16, 21, 22] |
0.91, 0.28 | 0.2 | | Confirmed by physician/phone interview/hospital records | 0 | NA | NA | | Confirmed by standard criteria or plasma glucose measurement | 7 [12–15, 17, 18, 20] | 1.10, 0.31 | <0.0001 | | Confirmed by standard criteria or plasma glucose measurement | 6 [13–15, 18–20] | 1.09, 0.36 | <0.00001 | | Sample size | | | | 0.51 | Sample size | | | | 1 | <10000 | 3 [18, 20, 22] | 1.14, 0.26 | 0.29 | | <10000 | 2 [18, 20] | 1.18, 0.11 | 0.53 | | ≥10000 | 7 [12–17, 21] | 1.01, 0.88 | <0.0001 | | ≥10000 | 4 [13–15, 19] | 1.07, 0.57 | <0.0001 | | Quality score | | | | 0.18 | Quality score | | | | 0.33 | High (9–12) | 2 [12, 13] | 0.87, 0.006 | 0.83 | | High (9–12) | 1 [13] | 0.85, NA | NA | | Moderate (5–8) | 8 [14–18, 20–22] | 1.1, 0.22 | 0.0001 | | Moderate (5–8) | 5 [14, 15, 18–20][16, 17, 20–22] | 1.17, 0.01 | 0.03 | |
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