Table 3.
Key Task Durations (minutes).
| Variable | ISBCS Mean (SD) | UC Mean (SD) | Statistical Significance P-value (95% CI) |
|---|---|---|---|
| Total length of theatre session | 177.12 (73.62) | 139.16 (47.73) | P = 0.36 (−128.4 to 52.53) |
| Patient time in theatre | 40.17 (12.83) | 20.11 (8.96) | P < 0.0001 (−24.46 to −11.67) |
| Time between cases | 5.87 (2.72) | 4.50 (6.36) | P = 0.44 (−4.922 to 2.170) |
| Time from patient entering theatre to start of operation | 6.59 (2.36) | 7.27 (2.08) | P = 0.30 (−0.6327 to 1.986) |
| Time for patient to exit theatre after operation | 3.43 (1.37) | 1.46 (0.70) | P < 0.0001 (−2.583 to −1.352) |
| Surgical time | 12.30 (5.71) | 13.38 (7.62) | P = 0.52 (−2.228 to 4.378) |
| Time Surgeon spends on paperwork | 1.92 (1.30) | 1.64 (1.09) | P = 0.37 (−0.8945 to 0.3341) |
| Surgeon Scrub time | 0.99 (0.33) | 0.96 (0.32) | P = 0.66 (−0.2031 to 0.1290) |
| Nurse Scrub time | 1.54 (0.53) | 1.72 (0.30) | P = 0.12 (−0.05001 to 0.4028) |
| Nurse time to prepare scrub trolley | 9.12 (5.41) | 11.43 (4.68) | P = 0.077 (−0.2577 to 4.892) |
| Nurse time to prepare phacoemulsification machine | 3.05 (1.32) | 2.20 (0.90) | P = 0.0053 (−1.434 to −0.2611) |
| Nurse time to clear equipmen | 4.46 (1.19) | 5.70 (2.28) | P = 0.03 (0.1248 to 2.364) |
| Time spent on WHO checklist | 0.48 (0.29) | 0.59 (0.24) | P = 0.092 (−0.01976 to 0.2536) |
| Time for Iodine Preparation & draping of patient | 1.14 (0.55) | 1.56 (0.78) | P = 0.012 (0.09619 to 0.7533) |
| AHP cleaning bed | 1.63 (0.72) | 1.13 (0.52) | P = 0.0078 (−0.8660 to −0.1389) |
| Theatre Utilisation Quotient (%) | 73.80 (30.67) | 57.98 (19.89) | P = 0.36 (−53.52 to 21.89) |
| Efficiency Quotient (%) | 53.29 (26.73) | 40.78 (15.65) | P = 0.39 (−44.45 to 19.45) |
| Surgery Quotient (%) | 38.96 (21.57) | 30.10 (13.58) | P = 0.46 (−35.15 to 17.43) |
All units in minutes unless stated otherwise.
ISBCS Immediate sequential bilateral cataract surgery, UC Unilateral Cases, AHP Allied Health Professional, WHO World Health Organisation.