Table 1. Characteristics of inpatient cases with appendectomy as sole intervention for acute appendicitis.

		2010		2017
		n	%	n	%
Total number of inpatient cases		113 614	100.0	102 464	100.0
Incidence per 100 000 persons		139		124
Incidence per 100 000 persons (standardized by age group, in relation to 2010)		139		123
Age (years)	< 15	22 273	19.6	14 944	14.6
	15–35	53 165	46.8	47 331	46.2
	> 35	38 176	33.6	40 189	39.2
Sex	Female	59 734	52.6	51 173	49.9
Length of hospital stay (days)	Mean (median)	5.1 (4)		4.4 (4)
Severity	Uncomplicated appendicitis	93 135	82.0	79 906	78.0
	Complicated appendicitis	20 479	18.0	22 558	22.0
Surgical procedure	Laparoscopic surgery	86 500	76.1	95 441	93.1
	Open surgery	23 365	20.6	4534	4.4
	Conversion	3728	3.3	2450	2.4
	Other or undefined	21	0.0	39	0.0
Type of surgery	Appendectomy	112 815	99.3	101 037	98.6
	Cecal resection	799	0.7	1427	1.4