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  • Title: Neurosensory, cognitive and academic outcomes at 8 years in children born 22-23 weeks' gestation compared with more mature births.
    Author: Marks IR, Doyle LW, Mainzer RM, Spittle AJ, Clark M, Boland RA, Anderson PJ, Cheong JL.
    Journal: Arch Dis Child Fetal Neonatal Ed; 2024 Aug 16; 109(5):511-518. PubMed ID: 38395594.
    Abstract:
    UNLABELLED: Despite providing intensive care to more infants born <24 weeks' gestation, data on school-age outcomes, critical for counselling and decision-making, are sparse. OBJECTIVE: To compare major neurosensory, cognitive and academic impairment among school-aged children born extremely preterm at 22-23 weeks' gestation (EP22-23) with those born 24-25 weeks (EP24-25), 26-27 weeks (EP26-27) and term (≥37 weeks). DESIGN: Three prospective longitudinal cohorts. SETTING: Victoria, Australia. PARTICIPANTS: All EP live births (22-27 weeks) and term-born controls born in 1991-1992, 1997 and 2005. MAIN OUTCOME MEASURES: At 8 years, major neurosensory disability (any of moderate/severe cerebral palsy, IQ <-2 SD relative to controls, blindness or deafness), motor, cognitive and academic impairment, executive dysfunction and poor health utility. Risk ratios (RRs) and risk differences between EP22-23 (reference) and other gestational age groups were estimated using generalised linear models, adjusted for era of birth, social risk and multiple birth. RESULTS: The risk of major neurosensory disability was higher for EP22-23 (n=21) than more mature groups (168 EP24-25; 312 EP26-27; 576 term), with increasing magnitude of difference as the gestation increased (adjusted RR (95% CI) compared with EP24-25: 1.39 (0.70 to 2.76), p=0.35; EP26-27: 1.85 (0.95 to 3.61), p=0.07; term: 13.9 (5.75 to 33.7), p<0.001). Similar trends were seen with other outcomes. Two-thirds of EP22-23 survivors were free of major neurosensory disability. CONCLUSIONS: Although children born EP22-23 experienced higher rates of disability and impairment at 8 years than children born more maturely, many were free of major neurosensory disability. These data support providing active care to infants born EP22-23.
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