Table 2 Predictors of A1c levels over time (P<0.20)

Predictors	Estimate	SE	P-value^a
Age at enrollment (years)	−0.028	0.008	<0.001
Female gender	−0.305	0.183	0.096
BMI at enrollment (kg/m²)	−0.039	0.012	0.001
Obese	−0.575	0.186	0.002
Race, ethnicity and language
White non-Hispanic	Reference
African-American non-Hispanic	0.349	0.349	0.317
Hispanic-Spanish	0.704	0.328	0.032
Hispanic-English	1.135	0.420	0.007
Other	0.569	0.496	0.252
Age at diagnosis (years)	−0.045	0.008	<0.001
Years since diagnosis	0.038	0.012	0.002
Physical activity level at enrollment	−0.330	0.194	0.090
LDL at enrollment	0.004	0.003	0.117
Insulin at enrollment	1.299	0.187	<0.001
Time-varying insulin	0.814	0.125	<0.001
Food insecure (vs secure) at enrollment	0.452	0.182	0.013
Season of A1c measurement ^a
Summer	Reference
Autumn	0.022	0.110	0.842
Winter	0.124	0.103	0.227
Spring	0.282	0.106	0.008
Number of A1c measurements	−0.098	0.058	0.095

^aItalicized P-values are statistically significant at P<0.05.
Since A1c measures reflect the previous 3 months, seasons are lagged by 2 months (that is, Winter includes February, March and April).

Quick links

Search