Table 2 Descriptive statistics and estimated Markov chain model parameters for diagnosis-derived subgroups
From: Identifying menstrual migraine– improving the diagnostic criteria using a statistical method
Subgroups – by diagnosis | |||||||
|---|---|---|---|---|---|---|---|
Neither diagnosis | sMM | \(\frac {2}{3}\)MRM | sMM only | \(\frac {2}{3}\)MRM only | Both diagnoses | ||
n | 60 | 40 | 54 | 5 | 19 | 35 | |
Age years | Mean | 40.8 | 41.8 | 41.3 | 40.8 | 39.9 | 42.0 |
Median | 43.0 | 43.0 | 41.5 | 42.0 | 39.0 | 44.0 | |
IQR | 35.0—47.0 | 36—45.5 | 36.0—47.8 | 35.0—45.0 | 33.0—49.0 | 36.5—46.0 | |
Diary length (days) | Mean | 130.7 | 143.9 | 122.4 | 181.2 | 92.6 | 138.5 |
Median | 104.5 | 122.0 | 94.5 | 134.0 | 80.0 | 116.0 | |
IQR | 86.5—152.0 | 88.3—162.3 | 81.3—148.5 | 109—152 | 76—97.5 | 85.5—158.5 | |
No. of menstrual cycles | Mean | 4.7 | 5.0 | 4.3 | 5.6 | 3.4 | 4.9 |
Median | 4.0 | 4.0 | 3.0 | 5.0 | 3.0 | 4.0 | |
IQR | 3.0—5.0 | 3.0—6.0 | 3.0—5.0 | 4.0—5.0 | 3.0—3.0 | 3.0—6.0 | |
Migraine days/30 days | Mean | 4.3 | 3.9 | 4.4 | 3.6 | 5.3 | 3.9 |
Median | 3.6 | 3.6 | 4.1 | 3.6 | 4.8 | 3.6 | |
IQR | 3.0—5.3 | 3.1—4.7 | 3.1—5.3 | 3.1—4.6 | 3.4—7.1 | 3.1—4.9 | |
Migraine attacks/30 days | Mean | 2.1 | 1.9 | 2.2 | 1.6 | 2.6 | 1.9 |
Median | 2.0 | 1.9 | 2.1 | 1.6 | 2.6 | 2.0 | |
IQR | 1.5—2.6 | 1.3—2.2 | 1.7—2.6 | 1.1—1.9 | 2.2—3.1 | 1.4—2.2 | |
Mean attack length (days) | Mean | 1.7 | 2.0 | 1.9 | 2.1 | 1.6 | 2.0 |
Median | 1.7 | 1.9 | 1.7 | 2.0 | 1.6 | 1.9 | |
IQR | 1.3—2.0 | 1.4—2.4 | 1.3—2.1 | 1.7—2.5 | 1.2—1.8 | 1.3—2.3 | |
Model param. est. | |||||||
μ NM | Mean | 8.4 | 4.5 | 6.2 | 4.8 | 9.3 | 4.5 |
Median | 8.1 | 4.4 | 5.6 | 5.0 | 8.9 | 4.4 | |
IQR | 5.8—11.0 | 2.4—6.1 | 3.1—8.6 | 3.0—6.1 | 7.0—11.9 | 2.1—6.1 | |
μ M | Mean | 8.3 | 23.2 | 22.5 | 14.2 | 19.0 | 24.4 |
Median | 7.7 | 22.9 | 21.6 | 13.6 | 18.2 | 23.1 | |
IQR | 5.2—11.1 | 11.8—27.3 | 17.1—27.1 | 11.8—13.6 | 16.0—20.0 | 20.0—27.3 | |
Δ μ | Mean | 0.0 | 18.6 | 16.3 | 9.4 | 9.6 | 20.0 |
Median | 0.0 | 18.2 | 15.5 | 8.9 | 9.3 | 18.6 | |
IQR | -4.7—4.1 | 14.2—21.2 | 10.9—20.2 | 8.7—9.4 | 7.4—11.2 | 15.1—22.1 | |
μ | Mean | 8.3 | 7.2 | 8.6 | 6.1 | 11.0 | 7.3 |
Median | 7.6 | 7.1 | 8.1 | 6.3 | 10.6 | 7.4 | |
IQR | 5.7—10.5 | 5.1—8.3 | 6.1—10.6 | 4.2—7.6 | 8.8—13.0 | 5.1—8.7 | |