From: Long-term outcomes of occipital nerve stimulation for chronic migraine: a cohort of 53 patients
Outcome measure | Prior to ONS | Post-ONS | Percentage change | Mean change (95Â % CI) | p Value |
---|---|---|---|---|---|
Whole cohort (n = 53) | |||||
 Headache daysa (±SD) | 29.57 (±2.12) | 23.91 (±10.04) | 20.0 % (±32.91) | 5.66 | < 0.001* |
  Range | 18–30 | 0–30 | 0–100 | (3.07, 8.25) | |
 Moderate-to-severe headache daysa (±SD) | 26.51 (±6.48) | 18.00 (±12.79) | 37.1 % (±41.27) | 8.51 | < 0.001* |
  Range | 5–30 | 0–30 | 0–100 | (5.63, 11.38) | |
 Average daily pain intensity VRS (±SD) | 6.00 (±1.71) | 4.66 (±2.59) | 27.8 % (±32.87) | 1.34 | < 0.001* |
  Range (VRS) | 3–9 | 0–10 | 0–100.0 | (0.64, 2.03) | |
 Average daily headache hours (±SD) | 16.06 (±5.38) | 11.52 (±7.12) | 31.6 % (±37.12) | 4.54 | < 0.001* |
  Range (hours) | 2–24 | 0–24 | 0–100 | (2.62, 6.45) | |
 Mean Patient estimated benefit (±SD) |  | 31.7 % (±33.12) |  |  |  |
  Range |  | 0–100 |  |  |  |
Chronic migraine alone (n = 35) | |||||
 Headache daysa (±SD) | 29.34 (±18–30) | 26.23 (±8.26) | 12.0 % (±26.29) | 3.11 | < 0.001* |
  Range | 18–30 | 2–30 | 0–93 | (0.79, 5.43) | |
 Moderate-to-severe headache daysa (±SD) | 26.83 (±6.74) | 21.03 (±11.33) | 26.0 %(±34.58) | 5.80 | 0.010* |
  Range | 5–30 | 0–30 | 0–100 | (2.76, 8.83) | |
 Average daily pain intensity VRS (±SD) | 6.09 (±1.63) | 4.89 (±2.34) | 23.7 % (±28.40) | 1.20 | 0.003* |
  Range (VRS) | 3–9 | 0–9 | 0–100 | (0.43, 1.96) | |
 Average daily headache hours (±SD) | 15.10 (±4.15) | 12.44 (±6.18) | 24.5 % (±34.24) | 2.75 | 0.003* |
  Range (hours) | 2.0–24.0 | 0–24.0 | 0–100 | (0.99, 4.50) | |
 Mean Patient estimated benefit (±SD) |  | 30.0 % (±29.77) |  |  |  |
  Range |  | 0–95 |  |  |  |
Multiple headache phenotypes (n = 18) | |||||
 Headache daysa (±SD) | 30.00 (±0.0) | 19.39 (±11.80) | 35.3 % (±39.37) | 10.61 | 0.001 |
  Range | 30 | 0–30 | 0–100 | (4.73, 16.48) | |
 Moderate-to-severe headache daysa (±SD) | 25.94 (±5.90) | 13.78 (±13.97) | 58.7 % (±45.48) | 12.16 | < 0.001 |
  Range | 10–30 | 0–30 | 0–100 | (6.63, 17.69) | |
 Average daily pain intensity VRS (±SD) | 5.83 (±1.88) | 4.22 (±3.04) | 23.7 % (±28.40) | 1.61 | 0.039 |
  Range (VRS) | 3–9 | 0–10 | 0–100 | (0.09, 3.12) | |
 Average daily headache hours (±SD) | 17.72 (±6.96) | 9.80 (±8.53) | 45.4 % (±39.56) | 7.91 | 0.001 |
  Range (hours) | 5.0–24.0 | 0.0–24.0 | 0–100 | (3.62, 12.21) | |
 Mean Patient estimated benefit (±SD) |  | 35.2 % (±39.53) |  |  |  |
  Range |  | 0–100 |  |  |  |