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Fig. 1 | BMC Urology

Fig. 1

From: Appropriate timing of performing abdominal ultrasonography and termination of follow-up observation for antenatal grade 1 or 2 hydronephrosis

Fig. 1

Rate of time to resolution or improvement of hydronephrosis in grade 1 or 2. Kaplan–Meier method. Points displayed as crosses shows censored cases. The upper table in this figure shows the number of affected patients at risk at each observational point. The lower table in this figure shows the rate (%) of resolution or improvement of hydronephrosis at each observational point. The rate of resolution or improvement of hydronephrosis was significantly higher in grade 2 than grade 1 (log-rank test, χ2 = 14.679, P = 0.00013). However, the rate of resolution of HN was significantly higher in SFU grade 1 than grade 2 (log-rank test, χ2 = 3.839, P = 0.05)

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