Table 1 Average levels of fatty acids extracted from the gastric mucosa lipids according to the presence (N = 11) or absence (N = 19) of peptic ulceration.

SFA^a

30.12 (0.540)

28.31 (0.668)

-0.179 to 3.806

0.073

0.069

MUFA^b

27.17 (0.735)

25.87 (0.491)

-0.442 to 3.052

0.137

0.156

PUFA^c

39.19 (0.825)

41.01 (0.510)

-3.701 to 0.052

0.056

0.090

n-3*

17.72 (1.407)

18.88 (0.550)

-3.787 to 1.468

0.374

0.410

n-6**

18.01 (0.768)

18.07 (0.503)

-1.869 to 1.740

0.942

0.856

n-6/n-3

1.09 (0.100)

0.98 (0.045)

-0.080 to 0.313

0.237

0.205

MUFA/SFA

0.91 (0.034)

0.92 (0.020)

-0.087 to 0.061

0.729

0.675

MUFA/PUFA

0.70 (0.028)

0.63 (0.019)

0.004 to 0.131

0.065

0.089

EPA† + DHA‡

14.34 (1.306)

15.14 (0.550)

-3.305 to 1.698

0.516

0.560

Total trans

0.94 (0.074)

0.98 (0.054)

-0.220 to 0.150

0.702

0.700

Saturated fatty acids

C12:0

0.36 (0.046)

0.31 (0.039)

-0.087 to 0.169

0.519

0.837

C13:0

0.39 (0.077)

0.17 (0.031)

0.081 to 0.371

0.003

0.005

C14:0

0.65 (0.071)

0.53 (0.040)

-0.029 to 0.279

0.108

0.088

C15:0

1.92 (0.053)

1.56 (0.071)

0.158 to 0.576

0.001

0.002

C16:0

17.38 (0.344)

16.40 (0.390)

-0.207 to 2.155

0.103

0.072

C17:0

0.36 (0.040)

0.31 (0.032)

-0.058 to 0.152

0.371

0.481

C18:0

8.03 (0.292)

8.28 (0.364)

-1.333 to 0.834

0.641

0.672

C20:0

0.23 (0.051)

0.16 (0.012)

-0.020 to 0.148

0.134

0.190

C22:0

0.51 (0.131)

0.28 (0.055)

-0.018 to 0.481

0.069

0.070

Monounsaturated fatty acids

C14:1n-9c

0.25 (0.028)

0.17 (0.007)

0.035 to 0.130

0.001

0.001

C16:1n-5

0.09 (0.019)

0.17 (0.019)

-0.133 to -0.013

0.018

0.010

C16:1n-9c

0.55 (0.057)

0.55 (0.044)

-0.153 to 0.142

0.943

0.867

C16 :4n-1

0.60 (0.056)

0.78 (0.046)

-0.332 to -0.027

0.022

0.020

C18:1n-9c

22.38 (0.608)

21.19 (0.485)

-0.428 to 2.799

0.144

0.169

C18:1n-11c

2.09 (0.042)

2.00 (0.057)

-0.073 to 0.263

0.259

0.273

C18:1n-12c

0.09 (0.009)

0.13 (0.009)

-0.066 to -0.011

0.006

0.012

C18:1n-13c

0.04 (0.006)

0.02 (0.006)

-0.001 to 0.035

0.059

0.035

C18:1n-14c

0.14 (0.018)

0.13 (0.009)

-0.032 to 0.041

0.814

0.615

C20:1

0.20 (0.030)

0.11 (0.009)

0.037 to 0.140

0.001

0.001

Polyunsaturated fatty acids

C16:2n-4

0.55 (0.057)

0.33 (0.031)

0.973 to 0.339

0.001

0.001

C16:3n-4

1.13 (0.079)

1.45 (0.089)

-0.592 to -0.053

0.021

0.014

C18:2-9c,12c

16.97 (0.864)

16.57 (0.514)

-1.521 to 2.328

0.671

0.497

C18:3n-3

0.34 (0.056)

0.47 (0.067)

-0.331 to 0.072

0.200

0.167

C18:3n-6

0.14 (0.018)

0.15 (0.023)

-0.077 to 0.058

0.778

0.700

C18:2 conjugated

0.10 (0.008)

0.08 (0.005)

-0.002 to 0.032

0.095

0.061

C20:3n-3

0.04 (0.01)

0.34 (0.07)

-0.493 to -0.092

0.006

0.004

C20:3n-6

0.05 (0.008)

0.04 (0.010)

-0.014 to 0.044

0.307

0.241

C20:4n-3

2.20 (0.114)

1.91 (0.118)

-0.076 to 0.655

0.116

0.110

C20:4n-6

0.11 (0.018)

0.38 (0.084)

-0.492 to -0.035

0.025

0.018

C20:5n-3

11.58 (1.119)

12.53 (0.440)

-3.043 to 1.147

0.362

0.433

C21:5n-3

0.13 (0.014)

0.23 (0.015)

-0.148 to -0.057

<0.0001

<0.0001

C22:4n-3

0.15 (0.030)

0.22 (0.017)

-0.134 to -0.001

0.045

0.047

C22:5n-3

0.67 (0.136)

0.79 (0.036)

-0.350 to 0.109

0.293

0.373

C22:6n-3

2.75 (0.222)

2.61 (0.223)

-0.549 to 0.838

0.673

0.792

C22:5n-6

0.73 (0.145)

0.94 (0.053)

-0.474 to 0.055

0.117

0.139

trans

C14:1n-5t

0.09 (0.017)

0.11 (0.017)

-0.080 to 0.027

0.318

0.199

C14:1n-7t

0.33 (0.046)

0.28 (0.032)

-0.060 to 0.163

0.351

0.514

C16:1n-9t

0.18 (0.027)

0.21 (0.023)

-0.107 to 0.041

0.372

0.374

C18:1n-t ¹

0.23 (0.012)

0.32 (0.038)

-0.190 to 0.019

0.108

0.162

C18:2n-9t,12t

0.12 (0.029)

0.06 (0.021)

-0.014 to 0.130

0.111

0.047

C18:2n-9c,12t

0.17 (0.039)

0.42 (0.068)

-0.437 to -0.050

0.015

0.009

C18:2n-9t,12c

0.12 (0.009)

0.27 (0.068)

-0.333 to 0.037

0.114

0.063