Primary study · included by 1 review

Mucoepidermoid tumour of the parotid gland: a very difficult prognostic evaluation.

Laudadio P, 1987 · Laudadio P, Caliceti U, Cerasoli P T, et al. · Clinical otolaryngology and allied sciences · 1987

Included by

Prognostic Factors and Survival Outcomes in Parotid Gland Mucoepidermoid Carcinoma: A Systematic Review with Meta-Analysis and Workflow Proposal.

Non-Cochrane · prognostic · 2026 · cited as Laudadio 1987 · Reference 27; Figures 2 to 4

Outcome this study informs	Pooled effect	Evidence	Certainty
Local recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.1]	8 studies	GRADE not reported
Regional recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	7 studies	GRADE not reported
Regional recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	7 studies	GRADE not reported
Regional recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	7 studies	GRADE not reported
Distant recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	5 studies	GRADE not reported
Regional recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	7 studies	GRADE not reported
Local recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.1]	8 studies	GRADE not reported
Local recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.1]	8 studies	GRADE not reported
Distant recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0, 0.1]	5 studies	GRADE not reported
Regional recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0]	7 studies	GRADE not reported
Distant recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.2]	5 studies	GRADE not reported
Regional recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.0 [0.0, 0.1]	8 studies · 584 participants	GRADE not reported
Regional recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	7 studies	GRADE not reported
Distant recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0, 0.1]	5 studies	GRADE not reported
Local recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.1]	8 studies	GRADE not reported
Local recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.1]	8 studies	GRADE not reported
Local recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.1]	8 studies	GRADE not reported
Regional recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	7 studies	GRADE not reported
Distant recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	5 studies	GRADE not reported
Local recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.1]	8 studies	GRADE not reported
Distant recurrence Any surgical or non-surgical treatment (single-arm; mostly parotidectomy with or without neck dissection and postoperative radiotherapy) vs None (single-arm) · Follow-up of included studies (mean 72.6 months overall)	Pooled proportion (%) 10 [0, 40]	6 studies · 352 participants	GRADE not reported
Local recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.1]	8 studies	GRADE not reported
Distant recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	5 studies	GRADE not reported
Local recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0.1 [0.1, 0.1]	8 studies	GRADE not reported
Regional recurrence Any treatment (mainly parotidectomy with or without neck dissection and postoperative radiotherapy); single-arm vs None (single-arm pooled proportion) · Not specified	Proportion 0 [0, 0.1]	7 studies	GRADE not reported
Local recurrence Any surgical or non-surgical treatment (single-arm; mostly parotidectomy with or without neck dissection and postoperative radiotherapy) vs None (single-arm) · Follow-up of included studies (mean 72.6 months overall)	Pooled proportion (%) 10 [0, 20]	9 studies · 645 participants	GRADE not reported

1 including review in total.