Multiple regression model: predictors of deviation in expected length of operation (N=160)
| Predictor | Yes (1) | Unstandardised coefficients | t-Statistic | p-Value | 95% CI for OR | |||
| n (%) | B | SE | B | Lower bound | Upper bound | |||
| Constant | −2.850 | 12.17 | −0.234 | 0.815 | −26.89 | 21.19 | ||
| Number of communication failures | – | 14.22 | 5.65 | 0.213 | 2.514 | 0.013 | 3.05 | 25.39 |
| Number of intraoperative interruptions | – | 5.105 | 4.09 | 0.101 | 1.247 | 0.214 | −2.98 | 13.19 |
| Team familiarity | 50 (31.3) | 6.164 | 12.17 | 0.033 | 0.401 | 0.689 | −24.23 | 36.56 |
Model: R2=0.063 (adjusted R2=0.045), F (3, 156)=3.477, p<0.018.
OR, odds ratio.