Table 1 Relationship between factors associated with surgeons’ experience and surgical outcomes in PPV cases.
Variable | No. of eyes(%) | |||
|---|---|---|---|---|
Success | Failure | P value* | aOR (95%CI)** | |
Total number of surgeries by quartile (range) | ||||
Q1 (4–90) | 470 (94.6) | 27 (5.4) | 0.325 | reference |
Q2 (91–229) | 435 (94.0) | 28 (6.0) | 1.03 (0.59, 1.79) | |
Q3 (230–460) | 446 (93.7) | 30 (6.3) | 1.16 (0.67, 2.00) | |
Q4 (527–4574) | 422 (91.7) | 38 (8.3) | 1.64 (0.97, 2.77) | |
Median (range) | 226 (0–4,574) | 253 (0–3,534) | 0.108 | P for trend = 0.056 |
Duration of surgical experiences into quartile (range) | ||||
Q1 (1–3) | 466 (95.7) | 21 (4.3) | 0.066 | reference |
Q2 (4–8) | 509 (92.2) | 43 (7.8) | 1.92 (1.12, 3.32) | |
Q3 (9–14) | 378 (94.2) | 23 (5.7) | 1.41 (0.76, 2.61) | |
Q4 (15–38) | 420 (92.1) | 36 (7.9) | 1.82 (1.04, 3.20) | |
Median (range) | 8 (1–38) | 8 (1–38) | 0.028 | P for trend = 0.130 |
Experience: Number of cases/year by quartile (range) | ||||
Q1 (2.1–20.1) | 445 (93.5) | 31 (6.5) | 0.763 | reference |
Q2 (20.3–30) | 470 (94.4) | 28 (5.6) | 0.88 (0.51, 1.50) | |
Q3 (30.2–45.1) | 428 (93.4) | 30 (6.6) | 1.06 (0.62, 1.80) | |
Q4 (45.4–157.7) | 430 (92.7) | 34 (7.3) | 1.36 (0.82, 2.34) | |
Median (range) | 30 (0–158) | 31 (0–136) | 0.630 | P for trend = 0.183 |
Activity: Number of registered cases by quartile (range) | ||||
Q1 (1–28) | 449 (92.6) | 36 (7.4) | 0.09 | reference |
Q2 (30–40) | 442 (94.4) | 26 (5.6) | 0.71 (0.42, 1.21) | |
Q3 (41–63) | 446 (91.8) | 40 (8.2) | 1.06 (0.66, 1.71) | |
Q4 (65–144) | 436 (95.4) | 21 (4.6) | 0.63 (0.36, 1.11) | |
Median (range) | 40 (1–144) | 40 (2–122) | 0.274 | P for trend = 0.330 |
