Table 2

The adjusted predicted probability of incident diabetes

Baseline characteristic		Predicted probability	Absolute change from reference	Relative change from reference	P value
DHP status	Non-DHP	0.37
DHP status	DHP	0.29	−0.08	−0.21	0.001
Gender	Female	0.37
Gender	Male	0.35	−0.02	−0.04	0.092
Age	19–34	0.30
	35–44	0.33	0.03	0.13	0.325
	45–54	0.37	0.07	0.22	0.018
	55–62	0.38	0.08	0.25	0.002
Baseline risk based on level of dysglycemia	Low A1c 5.7%–5.9% FPG 100–109 mg/dL	0.29
	High A1c 6%–6.4% FPG 110–125 mg/dL	0.50	0.21	0.74	<0.001
	ICD-9/OGTT	0.34	0.05	0.16	0.454
Baseline A1c/FPG/OGTT lab test count	0	0.71
	1	0.30	−0.41	−0.57	<0.001
	2	0.28	−0.43	−0.60	<0.001
	3+	0.32	−0.39	−0.55	<0.001
ICD-9 obesity	No	0.35
ICD-9 obesity	Yes	0.47	0.12	0.36	<0.001
Education	HS or less	0.38
	Some college	0.35	−0.03	−0.07	0.117
	College degree	0.33	−0.05	−0.14	0.019
Income	<$30 000	0.41
	$30 000–$49 000	0.38	−0.03	−0.06	0.325
	$50 000–$74 000	0.35	−0.05	−0.13	0.032
	$75 000+	0.34	−0.06	−0.15	0.016
Race/ethnicity	White	0.35
	Hispanic	0.37	0.02	0.05	0.127
	African–American	0.35	−0.01	−0.02	0.649
	Asian	0.38	0.02	0.06	0.388
	Other	0.51	0.16	0.44	0.031
Mental health comorbidity	No	0.36
Mental health comorbidity	Yes	0.37	0.02	0.05	0.293

Mental health comorbidity was defined by ≥1 ICD-9 related diagnosis for schizophrenia, depression, anxiety and/or post-traumatic stress disorder. Higher A1c/FPG at baseline=baseline A1c 6.0%–6.4% or FPG 110–125 mg/dL. Obese was defined by ≥1 ICD-9 related diagnosis of body mass index (BMI) ≥30 kg/m².
Bold values denote statistical significance at the p<0.05 level
DHP, Diabetes Health Plan; FPG, fasting plasma glucose; HS, high school; ICD-9, International Classification of Diseases 9th Revision; OGTT, oral glucose tolerance test.