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Table 1 Characteristics of the study population according to migraine status, Seattle, Washington, USA, 2003-2006

From: Sleep duration, vital exhaustion and perceived stress among pregnant migraineurs and non-migraineurs

 

Physician Diagnosed Migraine

 
 

Yes

No

 
 

N = 259

N = 1,075

p-value

Characteristics

%

%

 

Maternal Age (years)

33.2 ± 4.5

33.4 ± 4.4

0.47

   < 35

61.8

59.6

0.53

   ≥ 35

38.2

40.4

 

Non-Hispanic white race/ethnicity

89.6

87.4

0.26

Annual household income (US$)

   

   < 30,000

2.7

1.8

0.61

   30,000-69,999

12.0

14.3

 

   ≥ 70,000

80.7

79.4

 

   Missing

4.6

4.6

 

Nulliparous

53.7

60.9

0.03

Unmarried

11.2

7.6

0.06

Pre-gestational chronic hypertensive

8.1

3.1

< 0.001

Family history of diabetes mellitus

13.9

14.6

0.77

Family history of hypertension

54.4

49.3

0.14

Employed during pregnancy

81.9

77.9

0.16

Smoked during pregnancy

4.6

5.2

0.71

No prenatal vitamin

3.1

2.4

0.54

No exercise during pregnancy

7.3

7.4

0.99

Pre-pregnancy body mass index (kg/m2)*

24.4 ± 5.7

23.3 ± 4.3

< 0.001

   Normal (18.5-24.9)

63.3

71.5

0.02

   Lean (< 18.5)

4.3

4.7

 

   Overweight (25-29.9)

20.8

17.2

 

   Obese (≥ 30)

11.6

6.6

 
  1. Mean ± standard deviation (SD).
  2. *P-value < 0.05 from Student t test for continuous variable or from Chi-square test for categorical variables.