Table 1.

Patient Characteristics and Comorbidities by Preoperative Thrombocytosis Status

	Thrombocytosis	Normal Platelet Count	P
Age (yr)			<0.001
18-55	72 (7.3%)	2626 (4.0%)
56-70	218 (22.1%)	10,839 (16.7%)
71-85	400 (40.6%)	27,705 (42.7%)
> 85	295 (29.9%)	23,720 (36.6%)
BMI			<0.001
≤ 25	664 (67.4%)	35,940 (55.6%)
>25-30	211 (21.4%)	18,259 (28.0%)
>30	110 (11.2%)	10,691 (16.4%)
Female	747 (75.8%)	47,025 (72.5%)	0.019
Diabetes	162 (16.4%)	11,849 (18.2%)	0.143
Hypertension	624 (63.4%)	42,308 (65.2%)	0.227
Smoking	208 (21.1%)	8409 (13.0%)	<0.001
COPD	179 (18.2%)	7092 (10.9%)	<0.001
CHF	37 (3.8%)	1965 (3.0%)	0.186
Disseminated cancer	105 (10.7%)	1889 (2.9%)	<0.001
Dialysis	7 (0.7%)	934 (1.4%)	0.056
Mean ASA	3.1	3.0	<0.001
Leukocytosis	360 (36.5%)	8204 (12.6%)	<0.001

COPD = chronic obstructive pulmonary disease, CHF = congestive heart failure