Long-term quality-of-care score for predicting the occurrence of acute myocardial infarction in patients with type 2 diabetes mellitus

Table 4 Comparisons of the number and percentage in each score of study subjects group defined by old and new score systems

Score	Present study (n = 7351)			Score	Previous study1 (n = 7351)		Sensitivity analysis2 (n = 3433)
	n (%)	Crude HR	Adjusted HR		n (%)	Adjusted HR	n (%)	Adjusted HR
0	2107 (28.7)	1	1	0	6 (0.1)	1	969 (28.2)	1
1	1751 (23.8)	1.21 (0.91-1.61)	1.22 (0.92-1.63)	5	720 (9.8)	0.19 (0.03-1.46)	828 (24.1)	1.17 (0.77-1.76)
2	1355 (18.4)	0.97 (0.70-1.33)	0.98 (0.71-1.35)	10	1333 (18.1)	0.23 (0.03-1.69)	654 (19.1)	1.00 (0.63-1.58)
3	925(12.6)	0.56 (0.36-0.86)	0.57 (0.37-0.89)	15	1148 (15.6)	0.24 (0.03-1.78)	420 (12.2)	0.49 (0.25-0.98)
4	539 (7.3)	0.60 (0.36-1.02)	0.63 (0.37-1.07)	20	2932 (39.9)	0.27 (0.04-1.98)	249 (7.3)	0.62 (0.28-1.38)
5	343 (4.7)	0.59 (0.31-1.14)	0.63 (0.33-1.26)	25	857 (11.7)	0.18 (0.02-1.35)	173 (5.0)	0.49 (0.17-1.36)
6	228 (3.1)	0.27 (0.08-0.84)	0.26 (0.08-0.83)	30	344 (4.7)	0.20 (0.03-1.54)	97 (2.8)	0.00 (0.00-NA)
7-8	103 (1.4)	0.00 (0.00-4.23E266)	0.00 (0.00-1.57E265)	35-40	11 (0.2)	0.77 (0.05-12.47)	43 (1.3)	0.00 (0.00-NA)

¹De Berardis et al[27], 2008; Rossi et al[26], 2011.

²In order to compare the performance of our scoring system with that in the previous study, we used 5-point increments to assign the scores.

HR: Hazard ratio.