By contrast , measured odd-chain SFAs ( @:@ -LSB- pentadecanoic acid -RSB- and @:@ -LSB- heptadecanoic acid -RSB- ) were inversely associated with incident type @ diabetes ( HR -LSB- @ % CI -RSB- per @ SD difference : @ -LSB- @-@ -RSB- for pentadecanoic acid and @ -LSB- @-@ -RSB- for heptadecanoic acid ) , as were measured longer-chain SFAs ( @:@ -LSB- arachidic acid -RSB- , @:@ -LSB- behenic acid -RSB- , @:@ -LSB- tricosanoic acid -RSB- , and @:@ -LSB- lignoceric acid -RSB- ) , with HRs ranging from @ to @ ( @ % CIs ranging between @ and @ ) .