Association between serum unsaturated fatty acids levels and infertility among American women from the National Health and Nutrition Examination Survey 2013–2014

Table 2 The association of palmitoleic acid, oleic acid, vaccenic acid, and linoleic acid with infertility

Exposure	Unadjusted model RR (95%CI)	P value	Adjust model I RR (95%CI)	P value	Adjust model II RR (95%CI)	P value
Palmitoleic acid (µmol/L)	1.001 (0.998,1.004)	0.496	1.001 (0.998,1.003)	0.588	1.000 (0.997,1.003)	0.978
Palmitoleic acid (100 µmol/L)	1.102 (0.817,1.429)	0.496	1.078 (0.806,1.386)	0.588	0.996 (0.735,1.302)	0.978
Oleic acid (µmol/L)	1.000 (0.999,1.001)	0.662	1.000 (0.999,1.001)	0.866	1.000 (0.999,1.001)	0.808
Oleic acid (100 µmol/L)	1.016 (0.942,1.087)	0.662	1.006 (0.931,1.077)	0.866	1.009 (0.931,1.084)	0.808
Vaccenic acid (µmol/L)	0.992 (0.982,1.002)	0.140	0.993 (0.983,1.003)	0.175	0.994 (0.984,1.003)	0.213
Vaccenic acid (10 µmol/L)	0.927 (0.835,1.022)	0.140	0.934 (0.844,1.028)	0.175	0.939 (0.848,1.034)	0.213
Linoleic acid (µmol/L)	1.000 (1.000,1.001)	0.196	1.000 (1.000,1.001)	0.159	1.000 (1.000,1.001)	0.203
Linoleic acid (100 µmol/L)	1.027 (0.986,1.069)	0.196	1.029 (0.989,1.071)	0.159	1.027 (0.986,1.070)	0.203

Adjust model I: Adjusted for age
Adjust model II: Adjusted for age, marital status, body mass index, total physical activity, history of pelvic inflammatory disease treatment, and hypertension history
Abbreviations: RR, relative risk; CI, confidence interval

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