Is there value in using physician billing claims along with other administrative health care data to document the burden of adolescent injury? An exploratory investigation with comparison to self-reports in Ontario, Canada

Table 3 Exploring self-reported versus administratively-defined injury (unweighted)

i) Direct comparison of injuries identified using different data sources: self-reported injury for those with and without administratively-defined injury
		Administratively- defined injury		No administratively- defined injury
	Total N	N	Self-report N(%)	N	Self-report N(%)	Odds ratio
Total	2047	550	213 (38.7)	1497	193 (12.9)	4.3
Males	1081	318	126 (39.6)	763	123 (16.1)	3.4
Females	966	232	87 (37.5)	734	70 (9.5)	5.7
Phys. office¹	1855	358	134 (37.4)	1497	193 (12.9)	4.0
ED/ inpatient²	1812	315	145 (46.0)	1497	193 (12.9)	5.8
ii) Time from most recent administratively-defined injury to OHS interview (N = 550)³
				N	Mean (# days)	Median (# days)
Adolescents with self-reported injury				213	141	125
Adolesents without self-reported injury				337	173	171
Total				550	160	146
iii) Self-reported repetitive strain injuries, by self-reported & administratively-defined acute injuries (N = 2045)
				N	Repetitive Strain Injury N (%)	Odds Ratio
Self-reported acute injury				406	57 (14.0)	1.9
No self-reported acute injury				1639	129 (7.9)
Administratively-defined acute injury				550	88 (16.0)	2.7
No administratively-defined acute injury				1495	98 (6.6)
Administratively-def. & self-rep. acute injury				213	35 (16.4)	1.1
Administratively-def. & no self-rep. acute injury				337	53 (15.7)

def = defined; ED = emergency department; OHS = Ontario Health Survey; phys = physician's; self-rep. = self-reported
¹ At least 1 documented physician's office visit for injury within 1 year prior to interview, based on the administrative data. Adolescents with emergency department or inpatient visits but no physicians' office visits for injury are excluded from the denominator.
² Any documented emergency department or inpatient visits for injury within 1 year prior to interview, based on the administrative data. Adolescents with physicians' office visits but no emergency department or inpatient visits for injury are excluded from the denominator.
³ Analysis includes only those adolescents (N = 550) with administratively-defined injury

ISSN: 1472-6963