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Table 2 Demographic, medical history and clinical characteristics at baseline

From: Spectrum of practice in the routine management of cervical dystonia with abobotulinumtoxinA: findings from three prospective open-label observational studies

Characteristic AbobotulinumtoxinA treated subjects (N = 1202)
Sex (female); n (%) 797 (66.3)
Age; n (%)
 18–30 50 (4.2)
 31–40 118 (9.8)
 41–50 261 (21.7)
 51–60 306 (25.5)
 61–70 295 (24.5)
  > 70 172 (14.3)
Proportion subjects with CD family history; n (%) 85 (7.1)
Time since diagnosis (years); n (%)
  < 1 149 (12.4)
 1–5 415 (34.6)
  > 5 637 (53.0)
 Missing 1
Previous treatment with BoNT; n (%)
 Yes 994 (82.8)
 No 206 (17.2)
 Missing 2
Use of concomitant medication; n (%) 453 (37.7)
Proportion with simple CD; n (%)* 373 (31.1)
Proportion with complex CD; n (%) 821 (68.4)
Predominant head/neck deviation pattern; n (%)
 Torticollis 758 (64.1)
 Laterocollis 243 (20.5)
 Retrocollis 57 (4.8)
 Anterocollis 24 (2.0)
 Lateral shift 11 (0.9)
 Sagittal shift 10 (0.8)
 Missing/not derived 99
Secondary head/neck deviation pattern and associated components; n (%)
 Torticollis 283 (34.3)
 Laterocollis 468 (56.7)
 Retrocollis 200 (24.2)
 Anterocollis 151 (18.3)
 Lateral shift 170 (20.6)
 Sagittal shift 78 (9.5)
 No secondary pattern 68 (5.7)
 Missing/not derived 309
CD component; n (%)
 Shoulder elevation; n (%) 499 (71.6)
 Tremor; n (%) 393 (56.4)
 Jerk; n (%) 86 (12.3)
 No component 164
 Missing 341
Tsui tremor score category; n (%)
 0 445 (47.2)
 1 238 (25.3)
 2 155 (16.5)
 4 104 (11.0)
Missing 260
Tsui tremor severity category; n (%)
 None 445 (47.2)
 Mild 381 (40.4)
 Severe 116 (12.3)
 Missing 260
Tsui tremor duration category; n (%)
 None 445 (47.2)
 Occasional 250 (26.5)
 Continuous 247 (26.2)
 Missing 260
TWSTRS Total; mean ± SD** 33.95 ± 12.46
TWSTRS Severity; mean ± SD** 17.18 ± 5.13
TWSTRS Disability; mean ± SD** 9.95 ± 6.30
TWSTRS Pain; mean ± SD** 6.82 ± 4.94
  1. *6 subjects had no pattern. **Missing data for one subject
  2. BoNT botulinum neurotoxin, CD cervical dystonia, SD standard deviation, TWSTRS Toronto Western Spasmodic Torticollis Rating Scale