From: Medical cannabis for the treatment of fibromyalgia syndrome: a retrospective, open-label case series
 | Prior MC | With MC | P | Prior MC | With MC | P | Prior MC | With MC | P |
---|---|---|---|---|---|---|---|---|---|
ODI | 1 month, n = 30 | 3 months, n = 18 | 12 months, n = 12 | ||||||
Median | 64% | 48% | < 0.01 | 68% | 49% | < 0.01 | 61% | 47% | < 0.01 |
IQR | 28 | 23.5 | Â | 25 | 29.5 | Â | 25 | 40 | Â |
Mean | 64% | 48% | Â | 68% | 49% | Â | 61% | 47% | Â |
± SD | 17.8 | 19.1 |  | 18.5 | 21.7 |  | 18.3 | 22.2 |  |