Survival outcomes in early-onset oesophageal adenocarcinoma patients: A systematic review and meta-analyses

Table 4 Hazard ratios of risk of death and 95%CI for young, middle-aged, and older patients diagnosed with oesophageal adenocarcinoma

Ref.	Hazard ratios for risk of death and 95%CI
	Age categories (years)	Young age	Age categories (years)	Middle age	Age categories (years)	Older age
Kolb et al[17]	< 50	0.94 (0.92-0.96)	50-69	Ref. (1.0)	≥ 70	1.24 (1.21-1.26)
Xie et al[21]	< 50	Ref. (1.0)	50-59	1.19 (0.99-1.43)	70-79	1.26 (1.06-1.50)
			60-69	1.09 (0.91-1.30)	≥ 80	1.66 (1.38-1.99)
Sawas et al[14]	≤ 50	1.34 (1.02-1.75)	51-70	Ref. (1.0)	> 70	1.70 (1.36-2.10)
Strauss et al[25]	< 50	0.53 (0.17-1.69)	> 50	Ref. (1.0)	N/A	N/A
Yang et al[26]	< 45	1.35 (1.02-1.80)	45-59	Ref. (1.0)	≥ 75	1.52 (1.28-1.81)
			60-74	1.11 (0.97–1.26)

N/A: Not applicable.