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Forest plots of anxiety prevalence (%, 95% CI) among parents of babies admitted to NNU assessed ≤ 1 month and > 1 month to ≤ 1 year after birth. Subtotal is the pooled prevalence at each assessment time point; 95% CI is the 95% Confidence Intervals for the anxiety prevalence; I^2 represents the quantity of heterogeneity (0-100%); p is the p-value of the heterogeneity test.
