Publications by authors named "J Christian Berry"

To estimate the projected number of ALS cases in the United States from 2022 to 2030. Amyotrophic lateral sclerosis (ALS) is a progressive and fatal neuromuscular disease with no known cure. Because ALS is not a notifiable disease in the United States, the accurate ascertainment of prevalent ALS cases continues to be a challenge.

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Background: To evaluate the clinical presentation, pathological features and outcomes of retinoblastoma based on the race of origin in a global cohort of patients.

Methods: Retrospective collaborative study of 1426 patients who underwent primary enucleation for retinoblastoma.

Results: Patients were grouped into Caucasians (n = 231, 16%), Asians (n = 841, 59%), Hispanics (n = 226, 16%), Arabs (n = 96, 7%) and Others (Africans, African Americans, Indigenous Australians; n = 32, 2%) cohorts.

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Background: Wearable technology offers objective and remote quantification of disease progression in neurological diseases such as amyotrophic lateral sclerosis (ALS). Large population studies are needed to determine generalization and reproducibility of findings from pilot studies.

Methods: A large cohort of patients with ALS (N = 202) wore wearable accelerometers on their dominant and non-dominant wrists for a week every two to four weeks and self-entered the ALS Functional Rating Scale-Revised (ALSFRS-RSE) in similar time intervals.

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Context: A diagnosis of ALS can be challenging, and many people find ways to adapt. At the same time, emotional distress can arise early after an ALS diagnosis even when high quality multidisciplinary care is provided. When emotional distress occurs, it can become chronic over time, and can affect both the person living with ALS and their care-partner (together called a dyad).

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Objectives: To explore whether discussing contraceptive use with a healthcare provider is associated with current contraceptive use among transgender men and gender-diverse (TMGD) individuals.

Study Design: In 2019, we conducted a cross-sectional survey among transgender men and gender-diverse adults in the United States who were assigned female or intersex at birth. We measured whether respondents had ever discussed contraception with a healthcare provider as well as current use of contraception, reasons for use, and barriers to use.

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