Effects of changes in health insurance reimbursement level on outpatient service utilization of rural diabetics: evidence from Jiangsu Province, China

Table 4 Results of effect on yearly total outpatient medical fees

Variable	Yearly total outpatient medical fees
Variable	Coefficient	Exp(coefficient)-1	t-value
Severity of illness
Medium severity	1.210***	2.065	68.02
High severity	2.439***	10.462	138.33
Sex	−0.026**	−0.026	−2.12
Age 2	−0.005	−0.005	−0.07
Age 3	0.023	0.023	0.69
Age 4	0.001	0.001	0.08
Age 5	0.03	0.030	0.57
Age 6	0.021	0.021	0.35
year	−0.013	−0.013	−0.58
Diff-amount 2	0.115***	0.122	5.80
Diff-amount 3	−0.159***	0.147	−6.70
Diff-amount 2 *year	0.087***	0.091	3.13
Diff-amount 3 *year	0.157***	0.170	4.71

Note: * Indicates significance at 0.1; ** Implies significance at 0.05; *** Indicates significance at 0.01.

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