TY - JOUR PY - 2019// TI - Age and sex-mediated differences in six-month outcomes after mild traumatic brain injury in young adults: a TRACK-TBI study JO - Neurological research A1 - Yue, John K. A1 - Levin, Harvey S. A1 - Suen, Catherine G. A1 - Morrissey, Molly Rose A1 - Runyon, Sarah J. A1 - Winkler, Ethan A. A1 - Puffer, Ross C. A1 - Deng, Hansen A1 - Robinson, Caitlin K. A1 - Rick, Jonathan W. A1 - Phelps, Ryan R. L. A1 - Sharma, Sourabh A1 - Taylor, Sabrina R. A1 - Vassar, Mary J. A1 - Cnossen, Maryse C. A1 - Lingsma, Hester F. A1 - Gardner, Raquel C. A1 - Temkin, Nancy R. A1 - Barber, Jason A1 - Dikmen, Sureyya S. A1 - Yuh, Esther L. A1 - Mukherjee, Pratik A1 - Stein, Murray B. A1 - Cage, Tene A. A1 - Valadka, Alex B. A1 - Okonkwo, David O. A1 - Manley, Geoffrey T. SP - 609 EP - 623 VL - 41 IS - 7 N2 - INTRODUCTION: Risk factors for young adults with mTBI are not well understood. Improved understanding of age and sex as risk factors for impaired six-month outcomes in young adults is needed.

METHODS: Young adult mTBI subjects aged 18-39 years (18-29y; 30-39y) with six-month outcomes were extracted from the Transforming Research and Clinical Knowledge in Traumatic Brain Injury Pilot (TRACK-TBI Pilot) study. Multivariable regressions were performed for outcomes with age, sex, and the interaction factor age-group*sex as variables of interest, controlling for demographic and injury variables. Mean-differences (B) and 95% CIs are reported.

RESULTS: One hundred mTBI subjects (18-29y, 70%; 30-39y, 30%; male, 71%; female, 29%) met inclusion criteria. On multivariable analysis, age-group*sex was associated with six-month post-traumatic stress disorder (PTSD; PTSD Checklist-Civilian version); compared with female 30-39y, female 18-29y (B= -19.55 [-26.54, -4.45]), male 18-29y (B= -19.70 [-30.07, -9.33]), and male 30-39y (B= -15.49 [-26.54, -4.45]) were associated with decreased PTSD symptomatology. Female sex was associated with decreased six-month functional outcome (Glasgow Outcome Scale-Extended (GOSE): B= -0.6 [1.0, -0.1]). Comparatively, 30-39y scored higher on six-month nonverbal processing speed (Wechsler Adult Intelligence Scale-Processing Speed Index (WAIS-PSI); B= 11.88, 95% CI [1.66, 22.09]).

CONCLUSIONS: Following mTBI, young adults aged 18-29y and 30-39y may have different risks for impairment. Sex may interact with age for PTSD symptomatology, with females 30-39y at highest risk. These results may be attributable to cortical maturation, biological response, social modifiers, and/or differential self-report. Confirmation in larger samples is needed; however, prevention and rehabilitation/counseling strategies after mTBI should likely be tailored for age and sex.

Language: en

LA - en SN - 0161-6412 UR - http://dx.doi.org/10.1080/01616412.2019.1602312 ID - ref1 ER -