Glomerulonephritis Pattern at a Jordanian Tertiary Care Center

Abstract

Aim. To determine the prevalence and frequency of different pathological patterns of glomerulonephritis (GN) in adolescent (age ≥ 11 years) and adult Jordanian patients. Materials and Methods. A retrospective analysis of all clinical and pathological reports of Jordanian patients who had native renal biopsies at the University of Jordan hospital between January 2007 and March 2018 to assess the prevalence and pathological pattern of GN. The data were analyzed statistically using descriptive statistics, the chi-squared test, and Fisher's exact tests. The level of significance was set at P<0.05. Results. Two hundred and nine patients (88 males and 121 females) had native kidney biopsies diagnosed as having GN; the mean age at the time of biopsy was 36.0±14.9 years. Primary GN (51.2%) was more common than secondary GN (48.8%). The most common GN was lupus nephritis (LN) (33.5%), followed by membranous nephropathy (MGN) (15.3%), and diabetic nephropathy (DN) (11.0%). Furthermore, IgA nephropathy was noted in 8.1% of cases. LN was the most common among the secondary GN and occurred in 49.6% of females; MGN was the most common primary GN and occurred in 22.7% of males. There was a statistically significant difference between males and females in the prevalence of LN and MGN (P<.001 and P=.011, respectively). LN was also dominant in all age groups expect for the ≥60 years group, which tended to exhibit DN (40%). Conclusion. LN is the most common GN type in Jordan, followed by MGN and DN. MGN is the predominant primary GN with a higher prevalence among males; LN is the predominant secondary GN and tends to occur in Jordanian females. The GN patterns in this study shifted from membranoproliferative GN to MGN in Jordan, which revealed a shift towards similar patterns exhibited in developed countries. Furthermore, DN is the most frequent GN in the elderly.