Prospective paired crossover evaluation of potential impact of investigator gender on perceived pain intensity early after acute or scheduled surgery

Table 1 Demographic data of study patients

	Number of patients	Proportion (%)
Gender
Female	128	52
Male	116	48
Age (years)
18–29	23	9
30–49	53	22
50–64	53	22
65 +	115	47
Body mass index (kg/m²)^a
≤ 25.0	102	42
25.1–30.0	94	39
≥ 30.1	47	19
ASA classification
I	47	19
II	127	52
III	67	28
IV	3	1
Surgical category
Abdominal	72	30
Urological	86	35
Gynaecological	31	13
Vascular	27	11
Breast	28	11
Surgical technique
Endoscopic/minimally invasive	97	40
Laparoscopic	76	31
Open	71	29
Surgical planning
Acute	61	25
Scheduled	183	75
Surgical care
In-hospital	212	87
Out-hospital	32	13
Total	244	100

ISSN: 2042-6410