an increasing trendP < .001
Change of anxiety at different time points among parents HADS-A score presented an increasing trend with time (0 year: 8.3 ± 3.1, 0.5 year: 8.7 ± 3.8, 1 year: 9.2 ± 3.3, 2 years: 9.2 ± 3.5, 3 years: 9.4 ± 3.1) ( P < .001) (Fig. 2 A).