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Table 1 —

Frequency of documentation and presence or absence of selected characteristics overall and by probable type of diabetes

Documentation at diagnosis or in first yearAllType of diabetes
Type 2Type 1Unknown
n 49 25 14 10 
Age ≤5 years* 8/40 (1) 0/25 (0) 8/6 (0) 0/9 (1) 
Positive islet-cell antibody* 2/11 (36) 0/11 (14) 2/0 (12) 0/0 (10) 
Weight/age ≤15th percentile* 4/34 (11) 0/22 (3) 4/5 (5) 0/7 (3) 
Weight/age ≥85th percentile 21/17 (11) 21/1 (3) 0/9 (5) 0/7 (3) 
Acanthosis nigricans noted 6/10 (33) 6/7 (12) 0/3 (11) 0/0 (10) 
Elevated C-peptide or insulin 5/9 (35) 5/5 (15) 0/2 (12) 0/2 (8) 
Family history of type 2 diabetes 12/14 (23) 11/6 (8) 1/5 (8) 0/3 (7) 
Oral hypoglycemic agent with or without insulin or no current medication >1 year after diagnosis 17/31 (1) 16/9 (0) 1/12 (1) 0/10 (0) 
Documentation at diagnosis or in first yearAllType of diabetes
Type 2Type 1Unknown
n 49 25 14 10 
Age ≤5 years* 8/40 (1) 0/25 (0) 8/6 (0) 0/9 (1) 
Positive islet-cell antibody* 2/11 (36) 0/11 (14) 2/0 (12) 0/0 (10) 
Weight/age ≤15th percentile* 4/34 (11) 0/22 (3) 4/5 (5) 0/7 (3) 
Weight/age ≥85th percentile 21/17 (11) 21/1 (3) 0/9 (5) 0/7 (3) 
Acanthosis nigricans noted 6/10 (33) 6/7 (12) 0/3 (11) 0/0 (10) 
Elevated C-peptide or insulin 5/9 (35) 5/5 (15) 0/2 (12) 0/2 (8) 
Family history of type 2 diabetes 12/14 (23) 11/6 (8) 1/5 (8) 0/3 (7) 
Oral hypoglycemic agent with or without insulin or no current medication >1 year after diagnosis 17/31 (1) 16/9 (0) 1/12 (1) 0/10 (0) 

Data are n: presence/absence (not documented).

*

Classification criteria for type 1 diabetes;

classification criteria for type 2 diabetes.  

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