Table 5.

Risk Classes and Predicted Probabilities of NSAID-Induced Cardiovascular Events

Risk Class	Risk Index Score (Points)	All Patients (n=2551637), n(%)*	Average Predicted Probability (95% CI)	Observed Incidence
1	0–50	1,811,997 (71.0)	0.03 (0.03, 0.03)	0.02
2	51–58	409,312 (16.0)	0.14 (0.14, 0.14)	0.14
3	59–63	137,973 (5.4)	0.24 (0.24, 0.24)	0.26
4	64–68	77,499 (3.0)	0.34 (0.34, 0.34)	0.39
5	69–72	37,932 (1.5)	0.46 (0.46, 0.46)	0.49
6	73–76	27,188 (1.1)	0.55 (0.55, 0.55)	0.55
7	77–80	18,131 (0.7)	0.65 (0.65, 0.65)	0.60
8	81–85	15,088 (0.6)	0.74 (0.74, 0.74)	0.64
9	86–93	11,443 (0.4)	0.84 (0.83, 0.84)	0.69
10	≥94	5,074 (0.2)	0.93 (0.93, 0.93)	0.75

Notes: *Percentage total not equal to 100 due to rounding. Model Performance. C-Statistic=0.88.