Table 3.

Incidence of the single components of the composite endpoint 'in-hospital postoperative complications' in total cohort and different age-groups. A single patient may have more than one complication.

Age in years	Total cohort	<50	50–64	65–74	≥ 75
N	2642	474	1012	716	440
In-hospital postoperative complications, n (%)	111 (4.2)	22 (4.6)	29 (2.9)	30 (4.2)	30 (6.8)
Surgical re-intervention, n (%)	45 (1.7)	6 (1.3)	12 (1.2)	15 (2.1)	12 (2.7)
Hypocalcemia, n (%)	23 (0.9)	10 (2.1)	7 (0.7)	5 (0.7)	1 (0.2)
Vocal cord paresis/recurrent nerve paresis, n (%)	20 (0.8)	3 (0.6)	1 (0.1)	9 (1.3)	7 (1.6)
Bleeding and neck hematoma, n (%)	17 (0.6)	0	8 (0.8)	4 (0.6)	5 (1.1)
Sepsis, n (%)	5 (0.2)	1 (0.2)	2 (0.2)	1 (0.1)	1 (0.2)
Hemorrhagic shock/acute bleeding anemia, n (%)	4 (0.2)	0	0	1 (0.1)	3 (0.7)
Tracheal or airways injury, n (%)	4 (0.2)	0	2 (0.2)	1 (0.1)	1 (0.2)
Postoperative infection, n (%)	2 (0.1)	0	0	1 (0.1)	1 (0.2)
Other postoperative complications, n (%)	20 (0.8)	3 (0.6)	7 (0.7)	4 (0.6)	6 (1.4)