Introduction: Identification of LTB status is mandatory as pre-employment by PSMMC bylaws and MOH in Saudi Arabia, for the objective of follow up of negative LTB yearly, for possible conversion to positive LTB. Research work in Saudi Arabia and internationally indicating increased risk of TB as re-emerging disease. Health Care workers (HCWs) are at High risk of exposure to Tuberculosis infection or even LTB. The aim of this study is to identify prevalence of LTB infection among New HCWs Hires and their socio-demographic and work characteristics. Methods: A cross sectional survey of 6404 HCWs new hires for the 2017-2019 for PSMMC and PSCC, Riyadh KSA, for their status regarding Latent TB. Review of pre -employment records was conducted for results of PPD testing. Data regarding results of PPD, socio-demographic characteristics, also work characteristics were gathered using a data collection form. Presentation for the pattern of LTB findings in relation to socio-demographic groups and work characteristics was concluded. Results: screening for LTB as part of pre-employment health examination and annual screening for high risk groups is mandatory in health care setting. In this study we reviewed TST for LTB using PPD testing using the criteria of 10mm or more are positive, we screened 6404 HCWs out of which 314 (4.9%) were positive PPD (>=10mm induration). Furthermore, the highest frequency of positive PPD were from African Countries 14/101 HCWs (12.2 %), and from East Asia 187/2793 (6.3%) were positive PPD. Also, among physicians 67/743 (8.3%) were positive PPD, and the least were Administrators 16/866 (1.8%). Female HCWs having positive PPD 212/3707 (5.4%) were more than male HCWs having positive PPD 102/2383 (4.1%). Positive PPD was much higher among international contract HCWs (6.7%) than among local contract HCWs (3.1%). HCWs newly hired in PSMMC having higher percentage of positive PPD (5.2%) than HCWs hired in PSCC (2.5%). Conclusion: Health Care Workers are at high risk of contracting TB infection, PPD testing for HCWs is mandatory as a screening tool for establishing a base line detection of LTB, and improve TB control and care in Health care settings. Periodic screening is crucial for early detection of LTB and monitoring the progression to active TB among HCWs.
Mostafa Kofi, Abdulaziz Bin Rsheed, Saad AlBattal, Abood AlAbood, Azzam AlOtaibi, Abdulaziz AlQahtani, Tarek ElSaid, Yasser Yousef, Safa AlSedrah, Ahmed AlKhashman. Screening for latent TB among HCWs newly hired in a major hospital in Riyadh, Saudi Arabia. International Journal of Medical and Health Research, Volume 6, Issue 3, 2020, Pages 10-15