Allopurinol use and the risk of acute cardiovascular events in patients with gout and diabetes

Table 2 New Allopurinol use and Incident MI^a or incident stroke^b outcome

Allopurinol use	Total Person days (total person years)	Incident MI or Stroke	Per 100,000 PD (per 100 PY)
Current	2,053,185 person days (5621.3 person years)	158	7.70 (2.81 per 100 PY)
Previous	1,671,583 person days (4576.5 person years)	151	9.03 (3.30 per 100 PY)

PD person-days; PY person years
^aFor MI, the person days with baseline 410, 412, 430–438, 428.xx and 429.2X were removed. Also, the person days were censored at the occurrence of first MI or an outpatient diagnosis of 410.X1 or inpatient or outpatient diagnosis of 410 except 410.x1 and 412
^bFor stroke, the person days with baseline 410, 412, 430–438, 428.xx and 429.2X were removed. Also, the person days were censored at the occurrence of first stroke or an outpatient diagnosis of stroke or inpatient or outpatient diagnosis of 430–438 except for the dx codes for stroke. Stroke (430.xx, 431.xx, 433.x1 (433.01, 433.11, 433.21, 433.31, 433.81, 433.91), 434.xx excluding 434.x0 (434.01, 434.11, 434.91), 436.xx

ISSN: 1471-2261