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Epidemiology of human brucellosis in Nahavand county, Hamadan Province, western Iran: an 8-year (2010–2017) registry-based analysis Cover

Epidemiology of human brucellosis in Nahavand county, Hamadan Province, western Iran: an 8-year (2010–2017) registry-based analysis

Asian Biomedicine
Volume 14 (2020): Issue 4 (August 2020)
By: Salman Khazaei,  Manoochehr Solgi,  Shahram Goodarzi,  Leila Khazaei,  Iraj Salehi and  Ensiyeh Jenabi  
Open Access
|Sep 2020

Figures & Tables

Figure 1

Radar plot showing average morbidity (%) and month of 1,130 reported cases of human brucellosis in Nahavand county, western Iran (2010–2017).
Radar plot showing average morbidity (%) and month of 1,130 reported cases of human brucellosis in Nahavand county, western Iran (2010–2017).

Figure 2

Occupation of 1,130 patients with reported cases of human brucellosis in Nahavand county, western Iran (2010–2017).
Occupation of 1,130 patients with reported cases of human brucellosis in Nahavand county, western Iran (2010–2017).

Figure 3

Trend and annual percent change (APC) for brucellosis incidence in Nahavand county, western Iran (2010–2017). Incidence is shown per 100,000 population (solid circles indicated observed values). (A) Male population, dark gray line 2010–2013 APC 68.5*, light gray line 2013–2017, APC –10.5; (B) female population, dark gray line 2010–2013 APC 42.8, light gray line –4; (C) urban population, dark gray line 2010–2014 APC 36.2, light gray line –15.3; (D) rural population, dark gray line 2010–2013 APC 59.2*, light gray line 2013–2017 –8.4 (see Table 2). *P < 0.05. Joinpoint Regression Program (version 4.7.0.0, Feb 2020; Statistical Methodology and Applications Branch, Surveillance Research Program, National Cancer Institute).
Trend and annual percent change (APC) for brucellosis incidence in Nahavand county, western Iran (2010–2017). Incidence is shown per 100,000 population (solid circles indicated observed values). (A) Male population, dark gray line 2010–2013 APC 68.5*, light gray line 2013–2017, APC –10.5; (B) female population, dark gray line 2010–2013 APC 42.8, light gray line –4; (C) urban population, dark gray line 2010–2014 APC 36.2, light gray line –15.3; (D) rural population, dark gray line 2010–2013 APC 59.2*, light gray line 2013–2017 –8.4 (see Table 2). *P < 0.05. Joinpoint Regression Program (version 4.7.0.0, Feb 2020; Statistical Methodology and Applications Branch, Surveillance Research Program, National Cancer Institute).

Sex and rural–urban divide of reported cases of human brucellosis by age group, in Nahavand county (2010–2017)

Age group Frequency (%)0–14 y n (%)15–24 y n (%)25–44 y n (%)45–54 y n (%)55+ y n (%)P
SexMale 668 (60.9%)98 (14.2)123 (17.9)274 (39.8)86 (12.5)107 (15.6)<0.001*
Female 442 (39.1%)42 (9.5)64 (14.5)161 (36.4)68 (15.4)107 (24.2)
LocationRural 986 (87.3)125 (12.7)163 (16.5)376 (38.1)135 (13.7)187 (19.0)0.94
Urban 144 (12.7%)15 (10.4)24 (16.7)59 (41.0)19 (13.2)27 (18.8)
Total140 (12.4)187 (16.6)435 (38.5)154 (13.6)214 (18.9)

Year of change point, APC, and AAPC for brucellosis incidence in Nahavand, 2010–2017

GroupNo. of change points (year)YearsAPC Mean (95% CI)PAAPC Mean (95% CI)P
Male population1 (2013)2010–201368.5* (20.1, 136.4)0.016*17.4 (4.4, 31.9)0.007*
2013–2017–10.5 (–27.8, 10.8)0.20
Female population1 (2013)2010–201342.8 (–1.3, 106.5)0.05513.8 (0.2, 29.3)0.047*
2013–2017–4.0 (–24, 21.3)0.62
Urban population1 (2014)2010–201436.2 (–2.9, 91.1)0.06211.1 (–7.6, 33.7)0.26
2014–2017–15.3 (–50.4, 44.7)0.40
Rural population1 (2013)2010–201359.2 (10.3, 129.9)0.028*16.1 (2.2, 31.8)0.02*
2013–2017–8.4 (–27.4, 15.5)0.31
Overall1 (2013)2010–201357.3 (13.6, 117.9)0.021*15.8 (3.5, 29.6)0.01*
2013–2017–8.0 (–25.1, 13.1)0.23
DOI: https://doi.org/10.1515/abm-2020-0022 | Journal eISSN: 1875-855X | Journal ISSN: 1905-7415
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Language: English
Page range: 151 - 158
Published on: Sep 20, 2020
Published by: Chulalongkorn University
In partnership with: Paradigm Publishing Services
Publication frequency: 6 issues per year
Keywords:
brucellosis,
epidemiology,
health surveys,
Iran,
public health surveillance
Related subjects:
Medicine,
Assistive professions, nursing,
Basic medical science,
Basic medical science, other,
Clinical medicine,
Clinical medicine, other

© 2020 Salman Khazaei, Manoochehr Solgi, Shahram Goodarzi, Leila Khazaei, Iraj Salehi, Ensiyeh Jenabi, published by Chulalongkorn University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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