Table 2. Risk factors in patients with secondary immunodeficiency..

Risk factor (multiple answers possible)	N responses	n “yes” (%)
Hypertension or vascular disease	573	369 (64.4%)
Renal dysfunction	557	116 (20.8%)
Diabetes mellitus	561	110 (19.6%)
Thromboembolic events	562	57 (10.1%)
Autoimmune disease	555	42 (7.6%)

Total N = 1,644. The most frequently mentioned risk factors (> 5%) are shown.