Age affects the association between socioeconomic status and infertility: a cross-sectional study

BMC Women's Health

Table 4 Sensitivity Analyses (Interactive effect of age (additional age categories) and PIR on infertility)

additional age categories	OR (95% CI)	P-value	P for interaction
20–25	0.97 (0.67 ~ 1.42)	0.889	< 0.001
25–30	0.95 (0.74 ~ 1.22)	0.673
30–35	0.97 (0.78 ~ 1.21)	0.790
35–40	1.32 (1.08 ~ 1.62)	0.007
40–45	1.53 (1.25 ~ 1.87)	< 0.001
45–50	1.02 (0.84 ~ 1.24)	0.828

Adjusted for age, race, marital status, education, health insurance, BMI, previous pregnancy, general health condition, smoking, pelvic inflammatory disease, hypertension, diabetes mellitus, coronary heart disease, cancer, vigorous recreational activities, moderate recreational activities

ISSN: 1472-6874