Epidemiological, Clinical, and Laboratory Findings of 235 Hospitalized COVID-19 Adult Patients (Survivors and Non-Survivors) at Sohar Hospital in Oman

OBJECTIVES

The aim of this study was to describe the epidemiological and clinical characteristics and laboratory findings of coronavirus disease 2019 (COVID-19) patients at the Sohar Hospital, Sohar, Oman.

METHODS

This retrospective study of admitted COVID-19 patients at Sohar Hospital in Oman was carried out from March to October 2020. Demographics and laboratory data of 19 tests for 235 COVID-19 patients, of which 202 were survivors and 33 were non-survivors, were collected from the hospital information system after ethics approval.

RESULTS

Thirteen factors were significantly correlated with in-hospital mortality, including older age, having chronic disease, high neutrophil count, high troponin T, high creatinine, low albumin (p < 0.0001), high white blood cell (WBC) count, low hemoglobin, high D-dimer (p < 0.001), high C-reactive protein (CRP) (p < 0.002), low lymphocyte count (p < 0.003), high alkaline phosphatase (ALP) enzyme (p < 0.007) and high ferritin (p < 0.045). The most common laboratory blood test abnormalities that were highly correlated with mortality were increased values of CRP (100% of non-survivors), D-dimer (94.1% of non-survivors), ferritin (88.2% of non-survivors), and troponin T (85% of non-survivors) and reduced lymphocyte count (73.9% of non-survivors).

CONCLUSION

These findings could help in categorizing COVID-19 patients for risk-based assessment and early identification of patients with poor prognosis.

Reference Ranges of Serum Anti-Müllerian Hormone in Healthy Reproductive-aged Omani Women

Objectives

Anti-Müllerian hormone (AMH), a glycoprotein that belongs to the transforming growth factor-beta superfamily, is important for women's health. We aimed to determine the age-specific reference range of serum AMH in healthy Omani women from reproductive ages to menopause.

Methods

This cross-sectional cohort study was conducted among a group of healthy 20-50 years old Omani women. The participants were required to have body mass index < 32 kg/m², regular periods, no history of chronic illness, polycystic ovary syndrome, or gynecological operation. They were also required to not be using any hormonal contraceptive. Serum concentrations of AMH, follicle-stimulating hormone, luteinizing hormone, progesterone, and hemoglobin A_1c were measured. AMH-age nomogram and AMH levels were compared between the six selected age groups.

Results

The subjects were 319 Omani women aged 20-50 years. Serum AMH concentrations were found to decrease progressively with increasing age. An exponential model defined as √AMH = 479.02 × 0.91^age was selected to explain the reduction in AMH with age (R² = 0.298). The median AMH levels were 26.61 pmol/L for those aged 20-25 years, 20.89 pmol/L for 26-30 years, 19.92 pmol/L for 31-35 years, 13.71 pmol/L for 36-40 years, 9.24 pmol/L for 41-45 years, and 0.68 pmol/L for 46-50 years. The recommended 2.5^th to 97.5^th percentiles of AMH level, as reference ranges for various age groups, were found to be: 10.63-55.64 pmol/L (20-25 years), 3.74-61.88 pmol/L (26-30 years), 5.49-47.56 pmol/L (31-35 years), 2.15-48.91 pmol/L (36-40 years), 0.92-41.26 pmol/L (41-45 years), and 0.14-5.10 pmol/L (46-50 years).

Conclusions

This study (the first in Oman) determined the age-specific reference ranges of serum AMH in healthy Omani women in the age range of 20-50 years.