Table 3.

Ethnicity compared to absence of the PL.

Ethnicity	Absent PL	Odds ratio	95% CI	P
White
Hispanic (n = 662)	87 (13.1%)	1.00	Reference group	—
Non-Hispanic (n = 168)	25 (14.9%)	1.16	0.71–1.87	0.530
African American (n = 110)	5 (4.5%)	0.31	0.12–0.79	0.005
Asian (n = 70)	2 (2.9%)	0.19	0.05–0.81	0.008
Total (n = 1010)	119 (11.8%)

Chi-squared (χ ² = 13.64, df = 3, P = 0.003).

PL: palmaris longus; CI: confidence interval.