Adults with diabetes mellitus in Newfoundland and Labrador: a population-based, cross-sectional analysis

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Table 1:

Characteristics of patients with diabetes mellitus in Newfoundland and Labrador, fiscal year 2015/16

Note: CI = confidence interval, CCDSS = Canadian Chronic Disease Surveillance System, NA = not applicable, SD = standard deviation.
↵* Except where indicated otherwise.
↵† Standardized difference refers to urban v. rural.

Table 2:

Rates of completion and on-target results of clinical tests

Clinical test	Group; no. (%) of patients^*			Standardized difference (95% CI)
Clinical test	All patients n = 66 325	Urban n = 28 969	Rural n = 37 356	Standardized difference (95% CI)
HbA_1c
Test completed	51 007 (76.9)	22 085 (76.2)	28 922 (77.4)	0.028 (0.013 to 0.043)
Result, %, mean ± SD^†	7.35 ± 1.49	7.26 ± 1.50	7.41 ± 1.49	0.095 (0.077 to 0.113)
Result on target^†	26 157 (51.3)	11 877 (53.8)	14 280 (49.4)	0.088 (0.071 to 0.106)
Low-density lipoprotein cholesterol
Test completed	45 268 (68.3)	19 878 (68.6)	25 390 (68.0)	0.014 (−0.001 to 0.029)
Result, mmol/L, mean ± SD^†	2.41 ± 0.95	2.36 ± 0.94	2.46 ± 0.95	0.107 (0.088 to 0.126)
Result on target^†	17 175 (37.9)	8119 (40.8)	9056 (35.7)	0.107 (0.088 to 0.125)
Urine albumin-to-creatinine ratio
Test completed	22 676 (34.2)	10 148 (35.0)	12 528 (33.5)	0.031 (0.016 to 0.047)
Result, mg/mmol, median (IQR)^†	1.7 (0.8 to 5.4)	1.6 (0.8 to 5.1)	1.7 (0.8 to 5.6)	0.020 (−0.006 to 0.046)
Result on target^†	12 429 (54.8)	5708 (56.2)	6721 (53.6)	0.052 (0.026 to 0.078)

Note: CI = confidence interval, HbA_1c = glycated hemoglobin, IQR = interquartile range, SD = standard deviation.
↵* Except where indicated otherwise.
↵† Mean or median result and percentage on target were calculated in relation to number of patients with the particular test completed in the study period. Mean and median values were calculated using individuals’ most recent test results completed in the study period.

Table 3:

Admission to hospital, by category of most responsible diagnosis

Reason for admission	Group; no. (%) of patients			Standardized difference (95% CI)
Reason for admission	All patients n = 66 325	Urban n = 28 969	Rural n = 37 356	Standardized difference (95% CI)
Most responsible diagnosis (any)^*	9079 (13.7)	3956 (13.7)	5123 (13.7)	0.002 (−0.014 to 0.017)
Cardiovascular disease^†	2299 (3.5)	1003 (3.5)	1296 (3.5)	0.0 (−0.015 to 0.016)
Diabetes^‡	555 (0.8)	245 (0.8)	310 (0.8)	0.008 (−0.007 to 0.024)
Renal disease^§	16 (< 0.1)	2 (< 0.1)^¶	14 (< 0.1)	0.021 (0.005 to 0.036)

Note: CI = confidence interval.
↵* Includes all codes from the Canadian version of the 10th revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-10-CA).
↵† Includes ICD-10-CA codes I00–I78 (e.g., ischemic heart disease, hypertensive disease, acute myocardial infarction, heart failure, stroke).
↵‡ Includes ICD-10-CA codes E10–E11 (type I diabetes – type II diabetes).
↵§ Includes ICD-10-CA codes N18–N19 (chronic kidney disease – unspecified kidney failure).
↵¶ The Fisher exact test was used because of the small sample size.