What does this research mean for the field?

Earlier developmental timing of alcohol initiation during adolescence is associated with a more complex adult alcohol use disorder phenotype, characterized by increased psychiatric and substance use comorbidities. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Determine whether alcohol initiation during early, middle, or late adolescence is associated with graded clinical, psychiatric, and addictive complexity in adults with alcohol use disorder.

September 3, 2026Medical SciencesOpen Access

Developmental Timing of Alcohol Initiation as a Marker of Adult Clinical Complexity in Alcohol Use Disorder: A Cross-Sectional Study

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Authors

MFMaría Flores-LópezHospital Regional Universitario de Málaga RRRaquel ReviriegoHospital Regional Universitario de Málaga NGNuria García‐MarchenaUniversidad Complutense de Madrid

Discussion

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Implication

Cross-sectional study finds earlier adolescent drinking tracks with greater clinical complexity in adults with alcohol use disorder, indicating distinct developmental phenotypes.

Key Points

Determine whether alcohol initiation during early, middle, or late adolescence is associated with graded clinical, psychiatric, and addictive complexity in adults with alcohol use disorder.
Cross-sectional assessment of 436 treatment-seeking adults with lifetime alcohol use disorder from addiction programs in Spain, analyzing 409 participants categorized by initiation age: early (10–13 years; n=85), middle (14–16 years; n=182), or late adolescence (17–21 years; n=142).
Psychiatric diagnoses and substance use profiles were gathered via the structured Psychiatric Research Interview for Substance and Mental Disorders (PRISM), followed by between-group tests, ordinal logistic regression, and latent class analysis.
Earlier drinking was linked to graded increases in comorbid non-alcohol substance use disorders (67.1% early vs. 64.8% middle vs. 47.2% late; FDR-adjusted p=0.003), childhood conduct disorder (21.2% vs. 9.3% vs. 4.2%; FDR-adjusted p<0.001), and younger median age at diagnosis (19.0 vs. 23.5 vs. 30.5 years; p<0.001).
In multivariable regression adjusted for age at diagnosis, childhood conduct disorder (OR=3.42, 95% CI 1.50–7.76) and mood disorders (OR=2.13, 95% CI 1.41–3.21) remained significantly associated with earlier alcohol initiation.
Latent class analysis revealed a high externalizing and polysubstance complexity group representing 15.2% of participants that was significantly enriched for earlier drinking initiation (p<0.001).

Cite This Study

Flores-López et al. (2026) studied this question.

synapsesocial.com/papers/6a9935a0636c6408cfa7dfb4 https://doi.org/10.3390/medsci14050535

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Implication

Cross-sectional study finds earlier adolescent drinking tracks with greater clinical complexity in adults with alcohol use disorder, indicating distinct developmental phenotypes.

Developmental Timing of Alcohol Initiation as a Marker of Adult Clinical Complexity in Alcohol Use Disorder: A Cross-Sectional Study

Discussion

Member takes

Implication

Key Points

Cite This Study

Developmental Timing of Alcohol Initiation as a Marker of Adult Clinical Complexity in Alcohol Use Disorder: A Cross-Sectional Study

Discussion

Member takes

Implication

Key Points

Cite This Study

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