Impact of Clinical Experience and Diagnostic Performance in Patients with Acute Abdominal Pain

Table 2

Basic data concerning patients included during the baseline (1996–1997) and study periods (1997–2000).

	Baseline period (hospital)	Study period (hospital)	Study period (primary health care)
Patients included ()	881	3099	238
From the catchment area ()	881	2763	216
Eligible for definitive diagnosis ()	790	2851	222
Age: mean (quartile range) years	46 (24)	44 (44)	40 (44)
Proportion of women ()	419 (53%)	1563 (55%)	128 (58%)

SD: standard deviation.