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Table 3 Descriptive statistics for diagnosis-derived subgroups

From: Identifying menstrual migraine– improving the diagnostic criteria using a statistical method

  

Subgroups – by diagnosis

  

Neither diagnosis

Either diagnosis

Both Diagnoses

n

 

14

13

11

Age years

Mean

40.5

40.7

41.7

 

Median

41.5

38.0

40.5

 

IQR

35—51

36.0—45.8

36.3—47.3

Diary length (days)

Mean

228.4

229.8

221.9

 

Median 209.5

192.0

192.0

 
 

IQR

182.2—239.0

162.0—293.0

162.5—289.5

No. of menstrual cycles

Mean

7.0

7.9

7.9

 

Median 8.0

7.0

7.0

 
 

IQR

6.0—8.8

6.0—10.0

6.0—9.5

Migraine days/ 30 days

Mean

4.2

4.2

4.3

 

Median 3.8

3.6

4.4

 
 

IQR

2.7—5.2

3.4—5.3

3.2—5.4

Migraine attacks/ 30 days

Mean

2.1

2.0

1.9

 

Median

1.9

2.0

2.0

 

IQR

1.5—2.6

1.4—2.4

1.4—2.2

Mean attack length (days)

Mean

1.9

2.1

2.2

 

Median

1.3

1.7

1.9

 

IQR

1.3—1.9

1.4—2.2

1.4—2.3

Model param. est.

    

μ NM

Mean

8.2

5.5

5.0

 

Median

6.9

6.0

5.2

 

IQR

5.4—10.1

3.0—7.4

2.8—6.4

μ M

Mean

9.1

20.0

20.1

 

Median

10.0

18.9

21.4

 

IQR

5.7—12.5

16.7—21.7

17.4—22.9

Δ μ

Mean

0.9

14.4

16.0

 

Median

1.3

15.1

15.1

 

IQR

-2.0—3.7

12.2—16.2

13.6—17.4

μ

Mean

8.3

7.8

7.5

 

Median

7.5

8.1

7.9

 

IQR

5.6—10.0

5.6—9.0

5.4—8.6

  1. Patients with 6+ cycles recorded. n=27 (22.7%)