Table 1. Patient Demographics and Lesion Features.
| Demographics and Lesion Feature | No. (%)a | Effect Size (95% CI) | |
|---|---|---|---|
| ECD (n = 26)b |
SP (n = 20) |
||
| Age at surgery, median (range), y | 59 (21 to 83) | 56 (18 to 72) | 0.07 (−0.52 to 0.65) |
| Sex | |||
| Male | <10 | <10 | 0.02 (−0.11 to 0.44) |
| Female | 21 (82) | 12 (60) | |
| Lesion laterality | |||
| Right | 16 (62) | 11 (55) | 0.02 (−0.26 to 0.30) |
| Left | 10 (38) | 9 (45) | |
| Pathologic finding | |||
| PA | 15 (58) | 12 (60) | 0.02 (−0.07 to 0.47) |
| WT | <10 | <10 | |
| BCA | <10 | <10 | |
| Oncocytoma | <10 | <10 | |
| OPC | <10 | <10 | |
| Lesion size, mean (SD), cm | 2.2 (0.9) | 2.3 (1.1) | −0.10 (−0.68 to 0.48) |
| Margin status | |||
| Positive marginc | <10 | <10 | 0.02 (−0.26 to 0.30) |
| Negative margin | 21 (81) | 17 (85) | |
| Follow-up, median (range), d | 29 (0 to 419) | 132 (3 to 508) | −0.30 (−0.88 to 0.29) |
Abbreviations: BCA, basal cell adenoma; ECD, extracapsular dissection; OPC, oncocytic papillary carcinoma; PA, pleomorphic adenoma; SP, superficial parotidectomy; WT, Warthin tumor.
a
Cell sizes less than 10 are hidden per outcomes research policy to protect patient identity.
b
Percentages may not add to 100% owing to rounding.
c
Margins were called positive if there was inked tumor capsule at the margins.