Table 2. Mean HbA_1c levels across the study duration and the percentages of HbA_1c according to health care center type.

Health center type	Mean HbA1c/year
	2016	2015	2014	2013	2012
Overall	7.653	7.803	7.723	7.769	7.899
Primary care	7.639	7.780	7.714	7.609	7.775
Tertiary care	7.671	7.831	7.732	7.968	8.093
p-value	0.370	0.170	0.660	< 0.001	< 0.001

Health center type	HbA1c level, %
	Mean HbA1c	< 7%	7–9%	> 9%
Total	7.76	37.7	42.0	20.3
Tertiary care	7.68	34.9	44.4	20.8
Primary care	7.64	40.8	39.7	19.5

HbA_1c: glycated hemoglobin.