an increasing trendp = 0.009
The overall B/N ratio showed an increasing trend over time ( p = 0.009), and the increase was also most evident in children aged <5 years ( p = 0.020) ( Figure 1B ).
The overall B/N ratio showed an increasing trend over time ( p = 0.009), and the increase was also most evident in children aged <5 years ( p = 0.020) ( Figure 1B ).