Fewer ischemic strokes, despite an ageing population: stroke models from observed incidence in Norway 2010–2015

Rand, Kim; Dahl, Fredrik Andreas; Viana, Joe; Rønning, Ole Morten; Faiz, Kashif Waqar; Barra, Mathias

doi:10.1186/s12913-019-4538-7

BMC Health Services Research

Table 3 Negative binomial regression models predicting yearly risk of strokes (+ TIA) by type

From: Fewer ischemic strokes, despite an ageing population: stroke models from observed incidence in Norway 2010–2015

	Hemorrhage^d	Infarction^e	Unknown^f	TIA^g	Any stroke^c	Any incl. Death
Individuals^a
Adult (age > 17)
Constant	−13.517***	−14.4230***	−16.2628***	−15.2673***	−13.6616***	−13.1802***
Year since 2010	−0.016	− 0.0346***	− 0.1839***	− 0.0262***	− 0.0379***	− 0.0437***
Age (years)	0.112***	0.1879***	0.1415***	0.2061***	0.1710***	0.1534***
Age^b	0.000***	−0.0008***	− 0.0003*	− 0.0010***	− 0.0006***	− 0.0005***
Female	−0.842*	0.5912**	0.2203	−0.4282	0.3496*	0.5552***
Female * year	0.016	0.0030	0.0223	0.0016	0.0043	0.0005
Female * age	0.009	− 0.0432***	− 0.0231	0.0009	− 0.0340***	−0.0414***
Female * age^b	0.000	0.0004***	0.0002	0.0000	0.0003***	0.0004***
Child (age < 18)
Constant	−12.401***	−12.0622***	−13.2741***	−14.3341***	−11.4178***	−11.3493***
Toddler (age < 4)	2.436***	2.9728***	−0.3955	1.3481	2.6754***	2.6069***
Age	0.068	0.0405	−0.0818	0.1682**	0.0467	0.0425
Age * toddler	−0.984***	−1.1838***	−0.3499	0.2416	−1.1106***	−1.1063***
Episodes^b
Adult (age > 17)
Constant	−13.636***	−14.3582***	−16.5349***	−15.2870***	−13.6388***	−13.1495***
Year since 2010	−0.009	−0.0370***	−0.1768***	−0.0232***	−0.0384***	−0.04353***
Age (years)	0.119***	0.1921***	0.1504***	0.2068***	0.1762***	0.15748***
Age^b	0.000***	−0.0008***	−0.0003**	−0.0010***	−0.0007***	−0.00051***
Female	−0.506	0.8220***	0.4655	−0.3954	0.6176***	0.7991***
Female * year	0.006	0.0018	0.0176	−0.0012	0.0024	−0.00061
Female * age	0.001	−0.0491***	−0.0304	0.0004	−0.0409***	−0.04815***
Female * age^b	0.000	0.0004***	0.0003	0.0000	0.0003***	0.00041***
Child (age < 18)
Constant	−12.248***	−11.6127***	−13.1404***	−14.3342***	−11.0972***	−11.0428***
Toddler (age < 4)	2.505***	2.5881***	−0.5291	1.3484	2.4693***	2.41516***
Age	0.061	0.0220	−0.0722	0.1682**	0.0327	0.02939
Age * toddler	−0.976***	−1.0107***	−0.3597	0.2414	−0.9958***	−0.99262***

Statistical significance: ““> 0.05 > = “*” > 0.01 > = “**” > 0.001 > = “***”
^aYear-unique individuals, ^bRecorded hospitalizations or deaths separated by at least 24 h,^cICD-10 codes I61, I63, or I64, ^d ICD-10 code I61, ^e ICD-10 code I63, ^f ICD-10 code I64, ^g Transient Ischemic Attack - ICD-10 code G45

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ISSN: 1472-6963

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