TABLE V.

Factors associated with abstract quality scores

Parameter	Estimatea	p Value	Median quality scoreb
Meeting
ispor	Ref	0.3100	75.0
asco	1.61		82.1
ash	−2.27		75.0
Year
1997–2000	Ref	0.0014	67.9
2001–2003	3.32		73.2
2004–2006	6.58		76.8
2007–2009	8.38		78.6
Site
Other	Ref	0.1034	72.3
Europe	−0.15		76.8
North America	0.39		75.0
Cancer
Other	Ref	0.0053	73.2
Breast	2.28		75.9
Gastrointestinal	3.10		75.0
Genitourinary	4.71		78.6
Gynecologic	0.82		64.3
Hematologic	7.45		82.1
Lung	−5.45		69.6
Type
Other	Ref	0.7315	79.5
cea	−2.19		73.2
cma	−3.24		75.0
cua	−0.93		76.8

^aBeta estimates are presented in this linear regression model.

^bAbstract scores have been normalized.

ispor = International Society for Pharmacoeconomics and Outcomes Research; Ref = reference variable; asco = American Society of Clinical Oncology; ash = American Society of Hematology; cea = cost-effectiveness analysis; cma = cost-minimization analysis; cua = cost–utility analysis.