Measuring quality of diabetes care by linking health care system administrative databases with laboratory data

BMC Research Notes

Table 1 Outcomes of A1C testing among Saskatchewan adults with Diabetes by Demographic Characteristics

Characteristic	Number of persons with diabetes†	Tested for A1C		Number of persons tested	A1C <= 7.0%		A1C >= 9.0%		Mean A1C
		%	OR (95% CI)		%	OR (95% CI)	%	OR (95% CI)
ALL SASK	50713	66.9		33920	48.3		12.6		7.4
female	24188	66.0	0.95(0.92-0.99)	15971	50.4	1.16(1.11-1.21)	12.3	0.95(0.89-1.01)	7.4¹
male*	26525	67.7		17949	46.5		12.9		7.5
ETHNICITY
FN	6184	59.0	0.72(0.68-0.76)	3646	40.6	0.80(0.74-0.86)	25.5	2.05(1.88-2.24)	8.0¹
OSK*	44529	68.0		30274	49.3		11.1		7.4
LOCATION
urban*	27147	68.4		18563	49.9		11.9		7.4
non-urban	23508	65.2	0.86(0.83-0.89)	15333	46.5	0.86(0.82-0.90)	13.6	1.23(1.15-1.31)	7.5¹
AGE (years)
20-29	686	51.2	0.55(0.47-0.64)	351	40.2	0.56(0.45-0.69)	24.5	4.26(3.31-5.49)	8.1¹
30-39	2652	54.3	0.62(0.57-0.67)	1439	37.0	0.49(0.44-0.55)	27.4	4.96(4.33-5.67)	8.1¹
40-49	6287	62.1	0.85(0.80-0.90)	3902	42.1	0.61(0.57-0.66)	20.6	3.39(3.06-3.76)	7.8¹
50-59	10663	69.8	1.20 (1.4-1.26)	7443	44.4	0.68(0.64-0.72)	16.6	2.58(2.36-2.83)	7.6¹
60-69	11596	72.5	1.37(1.30-1.44)	8408	48.1	0.79(0.74-0.83)	10.6	1.54(1.40-1.70)	7.4¹
≥70*	18829	65.7		12377	54.3		7.1		7.2
INCOME QUINTILE
lowest	12991	63.1	0.76(0.72-0.81)	8195	46.0	0.81(0.75-0.86)	15.7	1.53(1.38-1.69)	7.6¹
second	11496	66.3	0.86(0.82-0.92)	7626	47.1	0.83(0.78-0.89)	13.4	1.31(1.18-1.45)	7.5¹
third	8615	68.8	0.96(0.90-1.02)	5923	50.3	0.94(0.88-1.01)	10.9	1.06(0.94-1.19)	7.3¹
fourth	7589	68.8	0.95(0.89-1.02)	5220	48.2	0.87(0.81-0.94)	11.3	1.08(0.96-1.22)	7.4¹
highest*	9436	69.9		6593	51.2		10.7		7.3

All rates are crude rates
*Reference category
†Includes prevalent diabetes cases aged 20 years and older at beginning of fiscal year 2005/06
Values in this table are based on the last A1C result reported for year
¹p < = 0.0001

ISSN: 1756-0500