MPD: Project measures / variables set: Xing1 QT

Project measures / variables set: Xing1 QT

ID, description, units	MPD:24931 QT interval QT [ms]
Measures	• 6mo • 12mo • 20mo
Data set, strains	Xing1 inbred 29 strains sex: both
Procedure	ECG
Comparison	aging-study, multiple cohorts
Ontology mappings	VT:0000231 heart excitatory physiology trait MA:0000072 heart MP:0003899 abnormal QT interval

Values Means Δ Means Z-scores

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Xing1 - interval QT

ANOVA, Q-Q NORMALITY ASSESSMENT

ANOVA Summary

Factor	DF	Sum of squares	Mean sum of squares	F value	p-value (Pr>F)
age	2	86.5094	43.2547	4.3208	0.0136
sex	1	2.0556	2.0556	0.2053	0.6506
strain	22	2805.3328	127.5151	12.7379	< 0.0001
age:sex	2	53.9353	26.9677	2.6939	0.0682
age:strain	44	487.0344	11.069	1.1057	0.2972
sex:strain	22	276.8288	12.5831	1.257	0.1916
age:sex:strain	44	380.9759	8.6585	0.8649	0.7201
Residuals	887	8879.5052	10.0107

Q-Q normality assessment based on residuals

INDIVIDUAL MEASURES

Project	ID		Treatment	Measure / Variable Description	Panel	Strains tested	Sex	Age
Xing1	24931	ECG	(none)	interval QT [ms] at age 6mo QT_M06	inbred	28	both	26wks
Xing1	24932	ECG	(none)	interval QT [ms] at age 12mo QT_M12	inbred	28	both	52wks
Xing1	24933	ECG	(none)	interval QT [ms] at age 20mo QT_M20	inbred	27	both	87wks