Table 3. Odds ratios (OR) and 95% confidence intervals (CI) of migraine status according to quartiles of serum lipids and lipoproteins.

	No Migraine (N = 866) n (%)	Yes Migraine (N = 196) n (%)	Unadjusted OR (95%CI)	Adjusted OR (95%CI)
Total cholesterol (mg/dL)
Q1 (<219)	210 (24.3)	37 (18.9)	1.00 (REF)	1.00 (REF)
Q2 (219-247)	216 (24.9)	40 (20.4)	1.05 (0.65-1.71)	1.05 (0.64-1.70)
Q3 (248-281)	220 (25.4)	46 (23.5)	1.19 (0.74-1.90)	1.16 (0.72-1.86)
Q4 (≥282)	220 (25.4)	73 (37.2)	1.88 (1.21-2.92)	1.87 (1.20-2.91)
P value for trend			0.002	0.003
HDL cholesterol (mg/dL)
Q1 (<56)	209 (24.1)	45 (23.0)	0.84 (0.54-1.29)	0.80 (0.52-1.24)
Q2 (56-63)	203 (23.4)	51 (26.0)	0.98 (0.64-1.49)	0.95 (0.62-1.45)
Q3 (64-72)	228 (26.3)	42 (21.4)	0.72 (0.46-1.11)	0.70 (0.45-1.08)
Q4 (≥73)	226 (26.1)	58 (29.6)	1.00 (REF)	1.00 (REF)
P value for trend			0.713	0.560
LDL cholesterol (mg/dL)
Q1 (<117)	208 (24.0)	35 (17.9)	1.00 (REF)	1.00 (REF)
Q2 (117-140)	219 (25.3)	47 (24.0)	1.28 (0.79-2.05)	1.25 (0.77-2.02)
Q3 (141-169)	221 (25.5)	50 (25.5)	1.34 (0.84-2.15)	1.30 (0.81-2.09)
Q4 (≥170)	218 (25.2)	64 (32.6)	1.74 (1.11-2.75)	1.70 (1.08-2.69)
P value for trend			0.017	0.023
Triglyceride (mg/dL)
Q1 (<170)	212 (24.5)	46 (23.5)	1.00 (REF)	1.00 (REF)
Q2 (170-206)	218 (25.2)	43 (21.9)	0.91 (0.58-1.44)	0.88 (0.56-1.40)
Q3 (207-252)	218 (25.2)	38 (19.4)	0.80 (0.50-1.28)	0.79 (0.49-1.26)
Q4 (≥253)	218 (25.2)	69 (35.2)	1.46 (0.96-2.22)	1.39 (0.91-2.14)
P value for trend			0.087	0.133
Total cholesterol:HDL ratio
Q1 (<3.4)	214 (24.7)	32 (16.3)	1.00 (REF)	1.00 (REF)
Q2 (3.4-3.8)	204 (23.6)	50 (25.5)	1.64 (1.01-2.66)	1.65 (1.01-2.68)
Q3 (3.9-4.4)	229 (26.4)	55 (28.1)	1.61 (0.99-2.58)	1.50 (0.93-2.41)
Q4 (≥4.5)	219 (25.3)	59 (30.1)	1.80 (1.13-2.88)	1.73 (1.07-2.78)
P value for trend			0.026	0.054

Adjusted for maternal age, parity and pre-pregnancy BMI.

Separate models were fitted for each lipid or lipoprotein