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Table 2 Sample description

From: Understanding developmental language disorder - the Helsinki longitudinal SLI study (HelSLI): a study protocol

  Typical development Language impairment
Monolingual
 • Finnish
NMonoTD = 80 NMonoDLD = 136
Bilingual
 • L1 not Finnish
 • L2 Finnish (≥ 1 yr exposure to Finnish in kindergarten)
NBiTD = 80 NBiDLD = 91
Recruited from Kindergartens Department of Phoniatrics
Exclusion criteria • PIQ < 85
• Difficulties in language acquisition or other development
Suspected or diagnosed in child
Diagnosed in parents or siblings
• PIQ < 70
• Diagnosed neurological impairment or disability
• Hearing impairment
• ASD
• Oral anomalies
Speech and language therapy Short guidance on individual speech sounds allowed SLT assessment or intervention required