Introduction Acute pneumonia is a leading infectious cause of death among children under 5 years globally and in Nigeria. Despite various existing strategies and interventions, pneumonia mortality remains unacceptably high. Novel interventions like improving vitamin D status may be needed as optimal vitamin D status may facilitate the ability of immune cells to fight against infections like pneumonia. We investigated the relationship between serum vitamin D [25(OH)D] levels and acute pneumonia in children younger than 5 years in Nigeria. Subjects and methods This cross-sectional study involved 135 children with pneumonia and 135 apparently healthy controls. Acute pneumonia was diagnosed using the revised World Health Organization criteria (2012) and chest radiological signs. Serum 25(OH)D concentrations were determined using a vitamin D ELISA kit. The mean serum 25(OH)D levels in both groups were compared and also determined odds ratio (OR) of pneumonia. Results The mean serum 25(OH)D level of children with pneumonia (52.14 ± 21.87 nmol/l) was significantly lower than that of controls (60.91 ± 32.65 nmol/l), p = 0.010. The proportion of children with low serum vitamin D levels (≤75.0 nmol/l) was significantly higher in the pneumonia group (n = 123, 91.1%) than the control group (n = 97, 71.9%), p < 0.001. After adjusting for confounders, serum 25(OH)D levels of greater than 75 nmol/l was associated with decreased odds of acute pneumonia (adjusted OR = 0.33, p = 0.007). Conclusion A low vitamin D level was associated with increased risk of acute pneumonia. Lay summary Introduction Chest infection (pneumonia) is a leading cause of death in children younger than 5 years of age globally and also in Nigeria. Pneumonia death is still very high despite all the existing efforts at reducing it. New methods may still be needed to drastically reduce this problem. One of these new methods may include improving the vitamin D status of an individual because optimal vitamin D levels may help the body to fight against infections like pneumonia. We investigated the relationship between blood levels of vitamin D and pneumonia in children younger than 5 years. Subjects and methods Vitamin D levels of 135 children with pneumonia were measured and compared with vitamin D levels of another 135 healthy children without pneumonia. We diagnosed pneumonia by using both revised World Health Organization criteria (2012) and chest X-rays signs. Blood levels of vitamin D were measured using a vitamin D ELISA kit. Results The average blood vitamin D level of children with pneumonia (52.14 ± 21.87 nmol/l) was low compared with that of children without pneumonia (60.91 ± 32.65 nmol/l), p = 0.010. The number of children with low blood vitamin D levels (≤75.0 nmol/l) was more in the pneumonia group (n = 123, 91.1%) than in children without pneumonia (n = 97, 71.9%), p < 0.001. After adjusting for other potential risk factors, blood level of vitamin D >75 nmol/l was associated with lower risk of having pneumonia, (adjusted OR = 0.33, p = 0.007). Conclusion A low vitamin D level was associated with increased risk of acute pneumonia.

Background: Colonoscopy is an important procedure in the management of colorectal diseases. During a colonoscopy, one can visualize the mucosa of the large bowel and perform therapeutic procedures. Aim: The aim of this study is to review the indications and findings of colonoscopy in our center. Data on age, gender, indications, and findings at endoscopy were extracted from the endoscopy unit register. Patients and Methods: The study is a retrospective descriptive one and included all patients who underwent colonoscopy between June 2017 to December 2019 at the endoscopy unit of Ahmadu Bello University Teaching Hospital (ABUTH), Zaria. Data on age, gender, indications, and findings at endoscopy were extracted from the endoscopy unit register. The data obtained were analyzed using the Statistical Package for the Social Sciences (SPSS) statistical software version 20. Results: One hundred and twenty-five patients had a colonoscopy during the period under review with a male to female ratio of 1.9:1. The age range of the patients was 3 to 85 years and the mean age was 46.7 ± 16.7 The most common indications for colonoscopy in our center were lower gastrointestinal bleeding (40 (32%)), followed by suspected colonic tumors (37 (29.6%)), and hemorrhoids (18 (14.4%)). The commonest findings were hemorrhoids (50 (40%)), colonic tumors (25 (20%)), and colitis (21 (16.8%)). Conclusion: A colonoscopy is an effective tool in the management of colorectal diseases. Lower gastrointestinal bleeding was the commonest indication for colonoscopy in our center and hemorrhoids and colorectal tumors were the commonest findings.

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