Methodological quality scores of studies using indirect 2D and 3D imaging techniques reporting on soft tissue–based quantitative longitudinal assessment of cranial dimensions in children until age 6 years with a score equal to or above 60% (n = 9) [133]–[141].

<p>  =  fulfilled the methodological criteria satisfactorily.</p><p>o  =  did not fulfill the methodological criteria.</p><p>.  =  not applicable.</p

PRISMA flow diagram of the study selection process.

<p>PRISMA flow diagram of the study selection process.</p

Methodological quality scores of studies using direct anthropometry for head circumference reporting on soft tissue–based quantitative longitudinal assessment of cranial dimensions in children until age 6 years with a score equal to or above 60% (n = 95) [24]–[118].

<p>  =  fulfilled the methodological criteria satisfactorily.</p><p>o  =  did not fulfill the methodological criteria.</p><p>.  =  not applicable.</p

Quality assessment instrument [21].

<p>Quality assessment instrument <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0089602#pone.0089602-Gordon1" target="_blank">[21]</a>.</p

Reliability of methods for soft tissue–based quantitative longitudinal assessment of cranial dimensions in children until age 6 years in studies with good methodological quality (methodological quality score equal to or above 60%).

<p>.  =  not reported.</p><p>ns  =  not significant.</p

Methodological quality scores of studies using direct anthropometry reporting on soft tissue–based quantitative longitudinal assessment of cranial dimensions in children until age 6 years with a score equal to or above 60% (n = 14) [119]–[132].

<p>  =  fulfilled the methodological criteria satisfactorily.</p><p>o  =  did not fulfill the methodological criteria.</p><p>.  =  not applicable.</p

Search strategy PubMed.

<p>Search strategy PubMed.</p