Table 1.

Population characteristics

	Elderly patients (EPs), n = 30	Young patients (YPs), n = 60	p
Age at diagnosis of Crohn’s disease (years)
Median [IQR 25–75]	67 [62–76]	25 [18.7–32]	0.0001
Age at 1 st surgery in our centers (years)
Median [IQR 25–75]	69 [63–76]	34 [26–40]
Sex ratio M/F	2.0	1.2	0.28
Male, n (%)	20 (66.7%)	33 (55.0%)
Female, n (%)	10 (33.3%)	27 (45.0%)
Comorbidities	24 (80%)	8 (13.3%)	< 0.0001
Diabetes, n (%)	7 (23.3%)	0 (0%)	0.0001
Cardiovascular disease, n (%)	23 (76.7%)	3 (5.0%)	0.0001
- Hypertension	18 (60%)	1 (1.7%)	0.0001
- Ischemic heart disease	6 (20%)	1 (1.7%)	0.0022
- Cardiac rhythm disorder	3 (10%)	2 (3.3%)	0.19
- Peripheral artery disease of the lower limbs	2 (6.7%)	0 (0%)	0.04
- Use of antiplatelet agents	12 (40%)	1 (1.7%)	0.0001
- Use of anticoagulants	3 (10%)	2 (3,3%)	0.19
Cancer, n (%)	9 (30%)	5 (8.3%)	0.008
Kidney failure, n (%)	2 (6.7%)	0 (0%)	0.03
Smoking (n = 86)			0.02
No, n (%)	14 (46.7%)	21(35%)
Former smoker, n (%)	12 (40%)	17 (28.3%)
Yes, n (%)	2 (6.7%)	20 (33.3%)
ASA score			0.02
ASA 1, n (%)	7 (23.3%)	28 (46.7%)
ASA 2, n (%)	14 (46.7%)	27 (45%)
ASA 3, n (%)	9 (30%)	5 (8.3%)
Body mass index (n = 88)			0.10
Median [IQR 25–75]	25.6 [22.7–27.7]	22.6 [20.6–25.9]

IQR interquartile range, EPs age at first surgery ≥ 60; YPs age at first surgery < 60; ASA score American Society of Anesthesiologists score