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Table 3 Inter-rater reliability: OSATS global rating

From: Face-to-face versus distance learning of basic suturing skills in novice learners: a quantitative prospective randomized trial

OSATS global rating Assessor 1 Assessor 2 p-value
Respects tissues a
 1 0 (0%) 3 (2.5%) 0.06
 2 9 (7.6%) 8 (6.8%)
 3 60 (50.8%) 47 (39.8%)
 4 45 (38.1%) 48 (40.7%)
 5 4 (3.4%) 12 (10.2%)
Time and motion a
 1 1 (0.8%) 2 (1.7%) 0.02*
 2 9 (7.6%) 7 (5.9%)
 3 65 (55.1%) 57 (48.3%)
 4 39 (33.1%) 39 (33.1%)
 5 4 (3.4%) 13 (11.0%)
Instrument handling a
 1 0 (0%) 4 (3.4%) 0.21
 2 19 (16.1%) 22 (18.6%)
 3 51 (43.2%) 43 (36.4%)
 4 38 (32.2%) 39 (33.1%)
 5 10 (8.5%) 10 (8.5%)
Suture handling a
 1 0 (0%) 1 (0.8%) 0.16
 2 23 (19.5%) 14 (11.9%)
 3 47 (39.8%) 53 (44.9%)
 4 37 (31.4%) 36 (30.5%)
 5 11 (9.3%) 14 (11.9%)
Flow of operation a
 1 0 (0%) 1 (0.8%) 0.67
 2 5 (4.2%) 14 (11.9%)
 3 59 (50.0%) 53 (44.9%)
 4 41 (34.7%) 36 (30.5%)
 5 13 (11.0%) 14 (11.9%)
Knowledge of procedure a
 1 1 (0.8%) 3 (2.5%) 0.76
 2 5 (4.2%) 7 (5.9%)
 3 44 (37.3%) 38 (32.2%)
 4 46 (39.0%) 42 (35.6%)
 5 22 (18.6%) 28 (23.7%)
Overall appearance a
 1 0 (0%) 0 (0%) 0.00*
 2 6 (5.1%) 4 (3.4%)
 3 56 (47.5%) 41 (34.7%)
 4 37 (31.4%) 45 (38.1%)
 5 19 (16.1%) 28 (23.7%)
Overall performance a
 1 0 (0%) 2 (1.7%) 0.89
 2 7 (5.9%) 7 (5.9%)
 3 52 (44.1%) 48 (40.7%)
 4 36 (30.5%) 35 (29.7%)
 5 23 (19.5%) 26 (22.0%)
OSATS total score (Mean ± S.D)
27.47 ± 5.85   28.05 ± 6.69 0.27
  1. *: statistically significant (p-value< 0.05)
  2. aN (%) of participants who correctly demonstrated the OSATS item