Table 5. Sensitivity analyses of the principal associations with incident abnormal uterine bleeding (AUB).

HR=hazard ratio; CI=confidence interval; AUB=abnormal uterine bleeding; HbA1c=glycated hemoglobin; BMI=body mass index

Sensitivity analysis	Adjusted HR (95% CI)	Wald χ²	P value
Excluding structural AUB
HbA1c, per 1% increase	1.43 (1.13-1.82)	8.81	0.003
BMI, per 5 kg/m² increase	1.38 (1.03-1.85)	4.60	0.032
Diabetes duration, per 5 years	1.25 (0.96-1.63)	2.72	0.099
Gynecology-documented AUB only
HbA1c, per 1% increase	1.45 (1.15-1.83)	9.55	0.002
BMI, per 5 kg/m² increase	1.39 (1.04-1.86)	4.89	0.027
Additional covariate adjustment
HbA1c, per 1% increase	1.46 (1.17-1.82)	10.83	0.001
BMI, per 5 kg/m² increase	1.40 (1.06-1.85)	5.60	0.018
Categorical exposure analysis
HbA1c ≥8.5%	2.14 (1.16-3.95)	5.92	0.015
BMI ≥30 kg/m²	1.82 (1.01-3.29)	3.95	0.047