Abstract
Objectives
Obstructive sleep apnea is associated with an increased risk of male infertility, and one of its causes is deviated nasal septum with inferior turbinate hypertrophy (DNS/ITH). However, the risk of male infertility associated with DNS/ITH remains unclear.
Methods
Using the Taiwan Longitudinal Health Insurance Database, we conducted a retrospective matched cohort study to investigate the risk of infertility in male patients diagnosed with DNS/ITH (N = 61,761) from 2000 to 2015 in comparison with matched controls without DNS/ITH (N = 247,044). We further analyzed the effect of septoturbinoplasty (STP), including septoplasty and turbinoplasty, on the risk of male infertility in DNS/ITH patients.
Results
At the end of the follow-up period, 46 (0.07%, 46/61,761, incidence rate: 6.25 per 100,000 person-years) patients developed infertility in the DNS/ITH group versus 72 (0.03%, 72/247,044, incidence rate: 2.28 per 100,000 person-years) in the control group; the incidence rate was 2.740-fold higher in the DNS/ITH group (log-rank P < 0.001). Cox proportional hazards regression revealed that the risk of infertility increased in the DNS/ITH group [adjusted hazard ratio (HR): 1.080, 95% confidence interval (CI), 1.049–1.514, P = 0.001]. Compared with the control group, the risk of infertility was highest in the DNS/ITH group without STP (adjusted HR: 2.842, 95% CI, 1.715–4.082, P < 0.001), followed by the DNS/ITH group with STP (adjusted HR: 1.074, 95% CI, 1.035–1.488, P = 0.012). The intervention of STP reduced the risk of infertility in the DNS/ITH group by 45.1% compared with those without STP (P = 0.033).
Conclusion
Clinicians should be aware of the risk of infertility in male patients presenting with DNS/ITH. Improving the nasal airway by STP may decrease the risk of male infertility.
Keywords
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