Table 1.
Melting points of FAs and median proportions of erythrocyte FAs, and correlation coefficients of erythrocyte FAs with lipophilic index for the subcohort of the EPIC-Potsdam study (n = 1,406)
| FA | Melting point (°C)a | Median proportionb (IQR) | Correlation with index (Spearman) |
|---|---|---|---|
| SFAs | |||
| 14:0 | 53.9 | 0.38 (0.30, 0.47) | 0.34**** |
| 15:0 | 52.3 | 0.21 (0.17, 0.26) | 0.27**** |
| 16:0 | 63.1 | 22.3 (21.2, 23.4) | 0.49**** |
| 17:0 | 61.3 | 0.32 (0.29, 0.36) | 0.16**** |
| 18:0 | 69.6 | 13.8 (12.8, 14.5) | −0.09* |
| 20:0 | 76.8 | 0.39 (0.34, 0.44) | 0.50**** |
| 21:0 | 74.3 | 0.04 (0.03, 0.05) | 0.22**** |
| 22:0 | 81.5 | 1.53 (1.32, 1.78) | 0.62**** |
| 23:0 | 79.1 | 0.27 (0.23, 0.32) | 0.36**** |
| 24:0 | 87.8 | 4.1 (3.5, 4.7) | 0.70**** |
| MUFAs | |||
| 16:1 n-7 | 0 | 0.44 (0.35, 0.55) | 0.16**** |
| 18:1 n-7 | 15.0 | 1.0 (0.9, 1.1) | −0.08* |
| 18:1 n-9 | 16.0 | 12.7 (12.0, 13.4) | 0.08* |
| 20:1 n-9 | 23.3 | 0.28 (0.25, 0.32) | −0.13**** |
| 22:1 n-9 | 34.7 | 0.29 (0.21, 0.45) | 0.08* |
| 24:1 n-9 | 42.8 | 4.0 (3.5, 4.6) | 0.59**** |
| PUFAs | |||
| 18:3 n-3 | −11.2 | 0.15 (0.13, 0.18) | −0.14**** |
| 20:5 n-3 | −54.1 | 0.77 (0.61, 0.94) | −0.40**** |
| 22:5 n-3 | −54.1 | 2.4 (2.1, 2.6) | −0.55**** |
| 22:6 n-3 | −44.2 | 4.8 (4.1, 5.4) | −0.62**** |
| 18:2 n-6 | −5.0 | 10.8 (9.9, 11.7) | −0.03 |
| 18:3 n-6 | −11.2 | 0.05 (0.04, 0.07) | 0.15**** |
| 20:4 n-6 | −49.5 | 13.3 (12.3, 14.2) | −0.71**** |
| trans-FAs | |||
| 16:1 n-7t | 31.0 | 0.17 (0.14, 0.21) | −0.08* |
| 18:1 n-9t + 18:1 n-7t | 44.8 | 0.51 (0.44, 0.59) | 0.12**** |
aValues obtained from the LipidBank database (http://lipidbank.jp/, accessed 19 November 2013)
b% of total FAs
*p < 0.05
****p < 0.0001