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Volume 22, Number 5—May 2016
Research

Outbreak of Middle East Respiratory Syndrome at Tertiary Care Hospital, Jeddah, Saudi Arabia, 2014

Deborah L. Hastings1, Jerome I. Tokars1, Inas Zakaria A.M. Abdel Aziz, Khulud Z. Alkhaldi, Areej T. Bensadek, Basem M. Alraddadi, Hani Jokhdar, John A. Jernigan, Mohammed A. Garout2, Sara M. Tomczyk, Ikwo K. Oboho, Andrew I. Geller, Nimalan Arinaminpathy, David L. Swerdlow3, and Tariq A. MadaniComments to Author 
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (D.L. Hastings, J.I. Tokars, J.A. Jernigan, S.M. Tomczyk, I.K. Oboho, A.I. Geller, D.L. Swerdlow); Cairo University, Cairo, Egypt (I.Z.A.M. Abdel Aziz); Ministry of Health, Jeddah, Saudi Arabia (K.Z. Alkhaldi, T.A. Madani); King Fahd General Hospital, Jeddah (A.T. Bensadek, H. Jokhdar, M.A. Garout); King Faisal Specialist Hospital and Research Center, Jeddah (B.M. Alraddadi); Central Board of Accreditation for Healthcare Institutions, Jeddah (H. Jokhdar); Umm Al-Qura University, Makkah, Saudi Arabia (H. Jokhdar, M.A. Garout); International Medical Center, Jeddah (M.A. Garout); Imperial College of London, London, UK (N. Arinaminpathy); King Abulaziz University, Jeddah (T.A. Madani)

Main Article

Table 5

Retrospective cohort study of risk factors for Middle East respiratory syndrome coronavirus infection acquired at King Fahd General Hospital, Jeddah, Saudi Arabia, March 2–May 10, 2014

Population or variable No. cases No. patient-days Rate* Rate ratio p value
Emergency department, inpatient areas, dialysis unit† 50 81,987 6.1
Setting
Emergency department 22 34,897 6.3 1.2 0.64
Inpatient areas 17 26,186 6.5 1.2 0.60
Dialysis unit 11 20,904 5.3 Referent
Outbreak week: start date
1: March 2 1 8,609 1.2 Referent
2: March 9 0 11,136 0.0 Referent
3: March 16 2 11,437 1.7 Referent
4: March 23 5 11,793 4.2 4.4 0.047
5: March 30 11 10,666 10.3 10.7 <0.001
6: April 6 20 6,805 29.4 30.5 <0.001
7: April 13 8 5,654 14.2 14.7 <0.001
8: April 20 1 5,333 1.9 1.9 0.57
9: April 27 2 5,509 3.6 3.8 0.19
10: May 4
 0
 5,047
 0.0
 0.0
 0.63
Emergency department, hospital inpatient areas‡ 39 61,083 6.4
Nationality
Saudi 18 40,384 4.5 Referent
Non-Saudi 21 20,698 10.1 2.3 0.01
Sex
F 10 21,897 4.6 Referent
M 29 39,151 7.4 1.6 0.18
Age group, y
0–19 8 33,005 2.4 Referent
20–39 10 16,888 5.9 2.4 0.064
40–59 18 9,400 19.1 7.9 <0.001
>60 3 1,725 17.4 7.2 0.016

*Per 10,000 patient-days.
†For these analyses, cases were attributed to the setting or week that was most probable on the basis of incubation period (Tables 1, 2); p values do not reflect uncertainty caused by these attributions.
‡Denominator data for dialysis patients was not available; dialysis patients are not included in these analyses.

Main Article

1These authors contributed equally to this article.

2Current affiliation: International Medical Center, Jeddah, Saudi Arabia.

3Current affiliation: Pfizer Inc., Collegeville, Pennsylvania, USA.

Page created: April 13, 2016
Page updated: April 13, 2016
Page reviewed: April 13, 2016
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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