Retrospective cohort study of the association between socioeconomic deprivation and incidence of gestational diabetes and perinatal outcomes

Table 6 Kendall’s Tau correlation analysis between IMD Rank, Gestational Diabetes Incidence, Age, BMI and Ethnicity

		IMD Rank	Gestational Diabetes	Age	BMI	Ethnicity
IMD Rank	Correlation coefficient	1.000	0.000	0.116^a	-0.098^a	-0.092^a
IMD Rank	Sig. (2-tailed)	-	0.932	< 0.001	< 0.001	< 0.001
Gestational Diabetes	Correlation coefficient	0.000	1.000	0.085^a	0.079^a	0.101^a
Gestational Diabetes	Sig. (2-tailed)	0.932	-	< 0.001	< 0.001	< 0.001
Age	Correlation coefficient	0.116^a	0.085^a	1.000	0.018^a	-0.059^a
Age	Sig. (2-tailed)	< 0.001	< 0.001	-	< 0.001	< 0.001
BMI	Correlation coefficient	-0.098^a	0.079^a	0.018^a	1.000	0.093^a
BMI	Sig. (2-tailed)	< 0.001	< 0.001	< 0.001	-	< 0.001
Ethnicity	Correlation coefficient	-0.092^a	0.101^a	-0.059^a	0.93^a	1.000
Ethnicity	Sig. (2-tailed)	< 0.001	< 0.001	< 0.001	< 0.001	-

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