Diagnostic yield and biopsy practice variability between gastroenterologists and general surgeons performing upper gastrointestinal endoscopy

Table 1 Demographic characteristics and temporal distribution of procedures, n (%)

Variable	Gastroenterology (n = 7232)	General surgery (n = 1593)	P value
Female	3593 (49.7)	712 (44.7)	< 0.001
Male	3638 (50.3)	881 (55.3)
Age (years), mean ± SD	43.1 ± 16.3 (median 41)	42.9 ± 16.9 (median 41)	0.761
Study period			< 0.001
2015-2018	2434 (33.7)	231 (14.5)
2019-2022	2400 (33.2)	574 (36.0)
2023-2025	2398 (33.2)	788 (49.5)

Sex distribution and study-period distribution were compared using the χ² test. Age was compared using the independent samples t-test. A P < 0.05 was considered statistically significant.