Fish consumption and risk of stroke: a second prospective case-control study from northern Sweden

Wennberg, Maria; Jansson, Jan-Håkan; Norberg, Margareta; Skerfving, Staffan; Strömberg, Ulf; Wiklund, Per-Gunnar; Bergdahl, Ingvar A.

doi:10.1186/s12937-016-0216-3

Nutrition Journal

Table 2 Baseline characteristics for 735 stroke cases and 2698 controls in Northern Sweden Health and Disease study

From: Fish consumption and risk of stroke: a second prospective case-control study from northern Sweden

	Controls		All stroke cases		Ischemic stroke		Hemorrhagic stroke
	N	%/Mean (SD)/Median (25^th, 75^th percentile)	N	%/Mean (SD)/Median (25^th, 75^th percentile)	N	%/Mean (SD)/Median (25^th, 75^th percentile)	N	%/Mean (SD)/Median (25^th, 75^th percentile)
Smokers (%)	2698	25.7	735	36.2^a	627	36.7^a	96	30.2
Men	1691	27.4	464	36.4^a	389	37.5^a	66	25.8
Women	1007	22.7	271	35.8^a	238	35.3^a	30	40.0^a
Academic education (%)	2669	14.5	725	11.6^a	617	13.0	96	4.17^a
Men	1677	12.7	461	9.54	386	10.9	66	3.03^a
Women	992	17.5	264	15.2	231	16.4	30	6.67
Physically active (%)	2665	74.6	723	71.8	617	70.7	94	77.7
Men	1673	70.8	457	69.4	384	67.7	64	78.1
Women	992	80.9	266	75.9	233	75.5	30	76.7
>once/day Fruit- and vegetable (%)	2620	87.7	711	83.4^a	607	83.2^a	93	83.9
Men	1633	84.0	446	79.4^a	375	78.4^a	63	84.1
Women	987	93.9	265	90.2^a	232	90.9	30	83.3^a
Strong beer (intakes/week)	2622	0.05^b (0, 0.05)	708	0.05^b (0, 0.05)	605	0.05^b (0, 0.05)	93	0.05^b (0, 0.28)
Men	1642	0.50^b (0, 0.50)	451	0.50^b (0, 0.50)	378	0.50^b (0, 0.50)	65	0.05 (0, 0.50)
Women	980	0.00^b (0, 0.05)	257	0.00^b (0, 0.05)	227	0.00^b (0, 0.05)	28	0.00^b (0, 0.05)
Wine (intakes/week)	2654	0.05^b (0, 0.50)	712	0.05^a,b (0, 0.50)	607	0.05^a,b (0, 0.50)	94	0.05^b (0, 0.50)
Men	1661	0.05^b (0, 0.50)	449	0.05^a,b (0, 0.50)	376	0.05^a,b (0, 0.50)	65	0.05^b (0, 0.50)
Women	993	0.05^b (0, 0.50)	263	0.05^b (0, 0.50)	231	0.05^b (0, 0.50)	29	0.05^b (0, 0.50)
Spirits (intakes/week)	2659	0.05^b (0, 0.50)	718	0.05^b (0, 0.50)	615	0.05^b (0, 0.50)	92	0.05^b (0, 0.50)
Men	1670	0.05^b (0.05, 0.50)	456	0.05^b (0.05, 0.50)	384	0.05^b (0,05, 0.50)	64	0.50^b (0.01, 0.50)
Women	989	0.05^b (0, 0.05)	262	0.05^b (0, 0.05)	231	0.05^b (0, 0.05)	28	0.05^b (0, 0.05)
Age (years)	2698	55.3 (7.40)	735	55.4 (7.40)	627	55.4 (7.38)	96	55.0 (7.87)
Men	1691	55.4 (7.29)	464	55.5 (7.23)	389	55.5 (7.16)	66	54.9 (7.97)
Women	1007	55.3 (7.60)	271	55.2 (7.69)	238	55.2 (7.73)	30	55.0 (7.77)
Diabetes (%)	2698	5.37	735	11.7^a	627	12.8^a	96	6.25
Men	1691	5.14	464	12.1^a	389	13.6^a	66	4.54
Women	1007	5.76	271	11.1^a	238	11.3^a	30	10.0
BMI (kg/m²)	2689	25.8^b (23.6, 28.4)	734	26.4^a,b (24.2, 29.4)	626	26.2^a,b (24.1, 29.4)	96	26.8^a,b (24.5, 29.7)
Men	1684	25.9^b (24.0, 28.2)	464	26.8^a,b (24.7, 29.4)	389	26.7^a,b (24.7, 29.4)	66	27.1^a,b (24.6, 29.8)
Women	1005	25.4^b (23.0, 28.9)	270	25.7^b (23.1, 29.7)	237	25.6^b (22.7, 29.6)	30	25.8^b (24.0, 29.7)
Systolic BP (mmHg)	2698	135 (17.4)	735	142^a (19.0)	627	142^a (19.3)	96	144^a (17.5)
Men	1691	135 (16.9)	464	143^a (18.3)	389	143^a (18.7)	66	144^a (16.5)
Women	1007	134 (18.2)	271	141^a (20.1)	238	140^a (20.2)	30	144^a (20.0)
Serum cholesterol (mmol/L)	2681	6.11 (1.25)	731	6.08 (1.25)	624	6.09 (1.26)	95	6.06 (1.21)
Men	1679	6.03 (1.20)	462	5.98 (1.25)	388	6.00 (1.25)	65	5.93 (1.33)
Women	1002	6.25 (1.31)	269	6.25 (1.23)	236	6.25 (1.27)	30	6.34 (0.84)

^aStatistically significant difference between cases and controls
^bLevels are medians (25^th, 75^th percentile)

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