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Table 1 Characteristics of the cohort of 1761 patientsa

From: Chronic pain after groin hernia repair: pain characteristics and impact on quality of life

Age, years, mean (SD) 59.01 (14.02)
BMI, kg/m2, mean (SD) 26.11 (3.26)
ASA physical status,n/N(%)
1. normal healthy patient 543/1761 (30.8)
2. patient with mild systemic disease 1027/1761 (58.3)
3. patient with severe systemic disease 187/1761 (10.6)
4. patient with severe systemic disease that is a constant threat to life 4/1761 (0.2)
Anxiety, HADS,n/N(%) 318/1705 (18.7)
Depression, HADS,n/N(%) 108/1705 (6.3)
Duration of surgery, min, mean (SD) 45.57 (21.90)
Meshless hernia repair 68/1755 (3.87)
Anaesthetic technique,n/N(%)
 General 241/1736 (13.9)
 Combined (general + local/regional) 138/1736 (7.9)
 Neuroaxial 1296/1736 (74.6)
 Ilioinguinal, abdominal-genital, or transversus abdominis plane blockade 12/1736 (0.7)
 Local anaesthetic infiltration 49/1736 (2.8)
Endovenous opioids during surgery,n/N(%) 672/1733 (38.8)
Complications during surgery,n/N(%) 20/1734 (1.2)
Prior analgesic treatments,n/N(%) 397/1752 (22.7)
Diagnosed chronic illness,n/N(%) 230/1756 (13.1)
Street drug dependence,n/N(%) 29/1755 (1.6)
Alcohol dependence,n/N(%) 252/1756 (14.4)
Smoking,n/N(%)
 Smoker 486/1756 (27.7)
 Ex-smoker 388/1756 (22.1)
Non-use of nerve-sparing techniques,n/N(%) 312/1756 (17.8)
Hospital stay, days, mean (SD) 0.61 (1.54)
  1. a The cohort of patients followed for chronic postsurgical pain after hernia repair, after exclusions and early losses (exitus, missing information before pain screening started, withdrawals) (Fig. 1). Numbers shown in denominators in the table reflect the total number of patients (N) for whom data were available for the variable named