Table 3.

Subgroup analysis of the association between family PIR and HPV infection status.

Subgroup	OR(95%CI)	P for interaction
Age		0.628
20-24	0.92 (0.85, 1.00)
25-59	0.90 (0.88, 0.93)
Race		0.147
Mexican American	1.01 (0.93, 1.09)
Other Hispanic	0.90 (0.81, 0.99)
Non-Hispanic White	0.90 (0.86, 0.94)
Non-Hispanic Black	0.91 (0.86, 0.97)
Other Race	0.90 (0.82, 1.00)
Diabetes status		0.172
Yes	1.01 (0.90, 1.14)
No	0.91 (0.88, 0.94)
Borderline	0.85 (0.65, 1.11)
Sexual intercourse		0.819
Yes	0.91 (0.89, 0.94)
No	0.89 (0.73, 1.09)

Age, race, marital status, drink status, smoking status, sexual intercourse, diabetes, and BMI were adjusted. In the subgroup analyses, the model is not adjusted for the stratification variable itself.

PIR, the ratio of family income to poverty; BMI, body mass index; HPV, human papillomavirus.