Primary study · included by 1 review

Clinical value of adjuvant therapy on the prognosis of ductal carcinoma of the major salivary gland: a large-scale cohort study.

Zhang 2023 · Zhang Di, Li Lixi, Wen Tingyu, et al. · European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2023

Included by

Postoperative radiotherapy versus postoperative radiochemotherapy after surgery of salivary gland cancer: a systematic review and meta-analysis.

Non-Cochrane · intervention · 2026 · cited as Zhang 2023 · Table 1; References

Outcome this study informs	Pooled effect	Evidence	Certainty
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.095 [1.020, 1.176]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.040 [0.969, 1.116]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.065 [0.998, 1.137]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.081 [1.002, 1.167]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.062 [0.995, 1.135]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.154 [1.014, 1.314]	6 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.065 [0.998, 1.137]	11 studies · 26612 participants	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	Regression coefficient -0.024 [-0.048, 0.0021]	11 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.061 [0.994, 1.133]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.046 [0.978, 1.119]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.074 [1.004, 1.149]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.087 [0.985, 1.200]	11 studies · 26612 participants	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.064 [0.997, 1.136]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.074 [0.996, 1.159]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	Regression coefficient 0.0143 [0.001, 0.028]	6 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.064 [0.996, 1.136]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	Regression coefficient -0.059 [-0.13, 0.017]	6 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	Regression coefficient -0.016 [-0.64, 0.61]	4 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	Regression coefficient -0.0003 [-0.012, 0.011]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	Regression coefficient 0.003 [-0.004, 0.009]	10 studies	GRADE not reported
Overall survival Postoperative radiochemotherapy (PORCT) vs Postoperative radiotherapy alone (PORT) · Median follow-up 3.3 to 6.9 years across studies	HR 1.040 [0.921, 1.174]	11 studies	GRADE not reported

1 including review in total.