Table 7 Myelitis, comparison of clinical features according to the patients' AQP4-Ab serostatus.

Annualized myelitis attack rate^†

   All patients with a history of myelitis

0.6 (0.03-3.21; N = 108)

0.47 (0.04-2.88; N = 27)

n.s.^§

Patients meeting Wingerchuk's 2006

Criteria

0.51 (0.03-2.73; N = 81)

0.39 (0.09-2.88; N = 20)

n.s.^§

Motor symptoms, first myelitis^§

   All patients with a history of myelitis

78/120 (65%)

22/35 (62.9%)

n.s.^‡

Patients meeting Wingerchuk's 2006

Criteria

53/81 (65.4%)

17/27 (63%)

n.s.^‡

Motor symptoms, all attacks^§

   All patients with a history of myelitis

293/409 (71.6%)

54/91 (59.3%)

p < 0.024^‡

Patients meeting Wingerchuk's 2006

Criteria

226/304 (74.3%)

42/74 (56.8%)

p < 0.005^‡

MRC grade during motor attack*

   All patients with a history of myelitis

2 (0-5; N = 82)

3 (0-5; N = 24)

p < 0.013^§

Patients meeting Wingerchuk's 2006

Criteria

2 (0-4.5; N = 55)

3.5 (0-5; N = 18)

p < 0.006^§

Motor attacks with MRC ≤ 2

   All patients with a history of myelitis

88/159 (55.3%)

16/48 (33.3%)

p < 0.009^‡

Patients meeting Wingerchuk's 2006

Criteria

71/119 (59.7%)

11/33 (33.3%)

p < 0.01^‡

Attacks with complete recovery

   All patients with a history of myelitis

55/298 (18.5%)

7/61 (11.5%)

n.s.^‡

Patients meeting Wingerchuk's 2006

Criteria

36/223 (16.1%)

6/49 (12.2%)

n.s.^‡