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Table 1 Work profiles of special education teachers and teacher’s aides (N = 388)

From: Work-related musculoskeletal disorders and ergonomic risk factors in special education teachers and teacher’s aides

Variables Items N (%)
Years of experience in SSa <9 months 18 (4.6 %)
  9-18 months 28 (7.2 %)
  19-42 months 59 (15.2 %)
  43-66 months 43 (11.1 %)
  >66 months 240 (61.9 %)
Work days per week <5 days 31 (8.0 %)
  5 days 308 (79.4 %)
  >5 days 49 (12.6 %)
Hours per day - ≤20 h 249 (64.2 %)
Administrative work 21-30 h 7 (1.8 %)
  31-40 h 53 (13.7 %)
  41-50 h 79 (20.4 %)
Hours per day - ≤20 h 104 (26.8 %)
Direct contact with students 21-30 h 12 (3.1 %)
  31-40 h 119 (30.7 %)
  41-50 h 153 (39.4 %)
Break between lessons Yes 128 (33.0 %)
  No 260 (67.0 %)
Nap habit Yes 167 (43.0 %)
  No 221 (57.0 %)
Exercise habit Yes 200 (51.5 %)
  No 188 (48.5 %)
Type of special school Public 388 (100 %)
  Subsidized 0 (0.0 %)
  Private 0 (0.0 %)
Age range of student served Kindergarten 15 (4.1 %)
  Elementary school 42 (11.4 %)
  Secondary school 50 (13.6 %)
  Vocational School 192 (52.0 %)
  Dormitory 41 (11.1 %)
  Others 3 (0.8 %)
  More than one segment 26 (7.0 %)
Diagnosis of students Physical disabilities 320 (85.6 %)
  Multiple disabilities 326 (87.2 %)
  Chromosomal abnormalities 134 (35.8 %)
  Hearing disabilities 120 (32.1 %)
  ASDb 314 (84.0 %)
  Rare disorder 143 (38.2 %)
  Intellectual disability 287 (76.7 %)
  Visual disabilities 111 (29.7 %)
  Others 22 (5.9 %)
Teaching partners in the same class Yes 118 (30.4 %)
  No 270 (69.6 %)
Supportive device usage upper extremity - Yes 64 (19.1 %)
- No 94 (28.1 %)
  lower extremity - Yes 34 (8.8 %)
- No 124 (32.0 %)
  Low back - Yes 121 (35.5 %)
- No 37 (10.9 %)
  1. a SS special schools
  2. b ASD autism spectrum disorders