Indirect costs associated with ulcerative colitis: a systematic literature review of real-world data

BMC Gastroenterology

Table 2 Indirect costs associated with absenteeism in UC

Author, year	Country	% of patients experiencing absenteeism	Number of days absent per year/patient	Cost		Cost adjusted
Author, year	Country	% of patients experiencing absenteeism	Number of days absent per year/patient	Average cost absenteeism per patient year	Currency, base year	Average cost absenteeism per patient year	Currency, base year
Aldeguer et al. 2016 [17]	Spain	NR	1.08 days per year^a,b	88.21^a	EURO, 2012	105.40	$, 2017
Cohen et al. 2015 [18]	USA	98.20%	11.5 days per year^a	3071	$, 2013	3196.60	$, 2017
Cohen et al. 2012 [21]	USA	NR	14.2 days per year^a	NR	$, 2010	NR	$, 2017
Cannon et al. 2011 [24]	NR^d	NR	60 days per year^c	NR	NR	NR	NR
Gibson et al. 2008 [25]	USA	85.75%	NR	6020.50^e	$, 2005	7793.50	$, 2017

NB: The publication by Katz Avitan et al. [2] conducted in Israel (not reported in the table) demonstrated that 21% of UC patients (N = 150) were experimenting absenteeism (defined as percentage of impairment while working)
^aDue to medical visit specifically
^bIn the study it was reported as 29.55 h per year
^cIn the study, they reported that UC patient had missed more than 5 days from work in the past month
^dThis publication was an abstract and did not report the country where the study was conducted
^eMean absence costs, all employees, with or without claims

ISSN: 1471-230X