Association between socio-economic status and hemoglobin A1c levels in a Canadian primary care adult population without diabetes

Aliarzadeh, Babak; Greiver, Michelle; Moineddin, Rahim; Meaney, Christopher; White, David; Moazzam, Ambreen; Moore, Kieran M; Belanger, Paul

doi:10.1186/1471-2296-15-7

Table 4 Results of multivariate linear mixed models estimating association between Hgb A1c levels, SES and associated variables across four different models

From: Association between socio-economic status and hemoglobin A1c levels in a Canadian primary care adult population without diabetes

	Income model		Material deprivation model		Social deprivation model		Combined material and social deprivation model
	Difference in mean Hgb A1c (95% CI)	P-value	Difference in mean Hgb A1c (95% CI)	P-value	Difference in mean Hgb A1c (95% CI)	P-value	Difference in mean Hgb A1c (95% CI)	P-value
Deprivation
• Most deprived (reference)	---	---	---	---	---	---	---	---
• Deprived	0.004 (-0.028 to 0.038)	0.78	-0.047 (-0.085 to -0.008)	0.02	0.019 (-0.011 to 0.048)	0.21	-0.017 (-0.052 to 0.018)	0.34
• Neutral	-0.019 (-0.052 to 0.012)	0.23	-0.029 (-0.065 to 0.007)	0.12	0.014 (-0.016 to 0.044)	0.37	-0.011 (-0.046 to 0.023)	0.52
• Less deprived	-0.023 (-0.055 to 0.008)	0.15	-0.040 (-0.075 to -0.004)	0.03	0.008 (-0.023 to 0.039)	0.62	-0.004 (-0.039 to 0.030)	0.79
• Least deprived	-0.020 (-0.049 to 0.009)	0.18	-0.035 (-0.069 to -0.001)	0.04	0.022 (-0.009 to 0.054)	0.18	-0.010 (-0.044 to 0.024)	0.57
LDL*	0.021 (0.010 to 0.032)	0.0001	0.020 (0.01 to 0.031)	0.0002	0.0214 (0.011 to 0.032)	0.0001	0.021 (0.010 to 0.032)	0.0001
HDL*	-0.067 (-0.094 to -0.039)	<0.0001	-0.068 (-0.095 to -0.040)	<0.0001	-0.067 (-0.095 to 0.040)	<0.0001	-0.068 (-0.09 to -0.040)	<0.0001
Triglycerides*	0.021 (0.008 to 0.034)	0.001	0.021 (0.008 to 0.033)	0.001	0.021 (0.008 to 0.034)	0.001	0.021 (0.008 to 0.034)	0.001
BMI†	0.004 (0.002 to 0.006)	<0.0001	0.004 (0.002 to 0.006)	<0.0001	0.004 (0.002 to 0.006)	<0.0001	0.004 (0.002 to 0.006)	<0.0001
SBP‡	0.003 (-0.001 to 0.001)	0.53	0.001 (-0.001 to 0.001)	0.59	0.001 (-0.001 to 0.001)	0.54	0.001 (-0.001 to 0.001)	0.55
DBP‡	0.001 (-0.001 to 0.002)	0.20	0.001 (-0.001 to 0.002)	0.17	0.001 (-0.001 to 0.002)	0.20	0.001 (-0.001 to 0.002)	0.19
Age§	0.007 (0.006 to 0.008)	<0.0001	0.007 (0.006 to 0.008)	<0.0001	0.007 (0.006 to 0.008)	<0.0001	0.001 ( 0.006 to 0.008)	<0.0001
Male gender	-0.050 (-0.073 to -0.028)	<0.0001	-0.051 (-0.074 to -0.029)	<0.0001	-0.051 (-0.073 to -0.028)	<0.0001	-0.051 (-0.073 to -0.029)	<0.0001
Family History of Diabetes	0.030 (0.005 to 0.055)	0.02	0.031 (0.005 to 0.055)	0.02	0.04 (0.005 to 0.056)	0.02	0.031 ( 0.006 to 0.056)	0.02

LDL—low density lipoprotein, HDL – high density lipoprotein, BMI – body mass index, SBP—systolic blood pressure, DBP—diastolic blood pressure.
* For each additional 1 mmol/L.
† For each additional 1 unit.
‡ For each additional 1 mmHg. § for each additional year.

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