Correction to: Prevalence of problematic smartphone usage and associated mental health outcomes amongst children and young people: a systematic review, meta-analysis and GRADE of the evidence.

After publication of our article [1] we were notified that one of the author names was misspelled.

Prevalence of problematic smartphone usage and associated mental health outcomes amongst children and young people: a systematic review, meta-analysis and GRADE of the evidence.

BACKGROUND: Over the past decade, smartphone use has become widespread amongst today's children and young people (CYP) which parallels increases in poor mental health in this group. Simultaneously, media concern abounds about the existence of 'smartphone addiction' or problematic smartphone use. There has been much recent research concerning the prevalence of problematic smartphone use is in children and young people who use smartphones, and how this syndrome relates to mental health outcomes, but this has not been synthesized and critically evaluated. AIMS: To conduct a systematic review and meta-analysis to examine the prevalence of PSU and quantify the association with mental health harms. METHODS: A search strategy using Medical Subject Headings was developed and adapted for eight databases between January 1, 1st 2011 to October 15th 2017. No language restriction was applied. Of 924 studies identified, 41 were included in this review, three of which were cohort studies and 38 were cross sectional studies. The mental health outcomes were self-reported: depression; anxiety; stress; poor sleep quality; and decreased educational attainment, which were synthesized according to an a priori protocol. RESULTS: The studies included 41,871 CYP, and 55% were female. The median prevalence of PSU amongst CYP was 23.3% (14.0-31.2%). PSU was associated with an increased odds of depression (OR = 3.17;95%CI 2.30-4.37;I2 = 78%); increased anxiety (OR = 3.05 95%CI 2.64-3.53;I2 = 0%); higher perceived stress (OR = 1.86;95%CI 1.24-2.77;I2 = 65%); and poorer sleep quality (OR = 2.60; 95%CI; 1.39-4.85, I2 = 78%). CONCLUSIONS: PSU was reported in approximately one in every four CYP and accompanied by an increased odds of poorer mental health. PSU is an evolving public health concern that requires greater study to determine the boundary between helpful and harmful technology use. Policy guidance is needed to outline harm reduction strategies.

Pregnancy outcomes for women with pre-existing renal disease and the role of a dedicated joint maternal medicine and renal clinic: A retrospective cohort study.

OBJECTIVE: To reaffirm the value of a joint obstetric and renal clinic on obstetric outcomes in patients with high-risk pregnancies due to chronic kidney disease (CKD). METHODS: This was a retrospective cohort study of patients who attended the clinic between 2005 and December 2021. The hospital is a regional tertiary unit for renal medicine and a maternal medicine hub. The data included all women with pre-existing renal conditions who were cared for in a dedicated renal and obstetric clinic. Datasets were extracted from hospital notes, the renal database, clinical data and maternity electronic health records. The data analyzed included pre-existing renal conditions, biochemical parameters related to the renal condition, pregnancy outcomes included miscarriages, gestation, mode of delivery, postpartum hemorrhage (PPH), loss, birth weight and neonatal admission. RESULTS: The results were as follows: Lupus nephritis: four term deliveries; three had pre-eclampsia; two PPH and two miscarriages. Four estimated glomerular filtration rates (eGFRs) returned to baseline levels within 12 months. With regard to IgA nephropathy there were five live births, four term deliveries, two pre-eclampsia (PE) and five cesarean sections (CS). All eGFRs returned to baseline within 12 months. With regard to patients with adult polycystic kidney disease (APKD), there were six live births, two had pre-eclampsia and there were five term vaginal deliveries. CONCLUSION: Patients with lupus nephritis, APKD, and IgA demonstrated a higher incidence of adverse pregnancy outcomes as compared with our local pregnant population. Our findings reflect those of larger studies and support the role of combined renal/obstetric clinics. More research and larger scale studies are needed into specific CKD conditions and their outcomes.