ABSTRACT
BACKGROUND: Leadership is key to strengthening performance of Health Systems. Leadership styles are important organizational antecedents, especially in influencing employee's motivation, job satisfaction, and teamwork. There is limited research exploring this relationship among health workers in resource-limited settings such as Uganda. The aim of this study was to examine the relationship between transformational, transactional, and laissez-faire leadership styles and motivation, job satisfaction, and teamwork of health workers in Uganda. METHOD: We conducted a cross-sectional study in 3 geographic regions of Uganda in November 2015, using self-administered questionnaires with 564 health workers from 228 health facilities. Data were collected on health workers' perception of leadership styles displayed by their facility leaders, their level of motivation, job satisfaction, and team work. Using Pearson correlation, relationships among variables were identified and associations of the components of leadership styles with motivation, job satisfaction, and teamwork was found using multivariable logistic regression. RESULTS: Health workers in Uganda preferred leaders who were transformational (62%) compared with being transactional (42%) or laissez-faire (14%). Transformational leadership was positively correlated with motivation (r=0.32), job satisfaction (r=0.38), and team work (r=0.48), while transactional leadership was positively correlated with job satisfaction (r=0.21) and teamwork (r=0.18). Motivation was positively associated with leaders who displayed idealized influence-behavior (odds ratio [OR]=3.7; 95% CI, 1.33-10.48) and intellectual stimulation (OR=2.4; 95% CI, 1.13-5.15) but negatively associated with management by exception (OR=0.4; 95% CI, 0.19-0.82). Job satisfaction was positively associated with intellectual stimulation (OR=5.7; 95% CI, 1.83-17.79). Teamwork was positively associated with idealized influence-behavior (OR=1.07-8.57), idealized influence-attributed (OR=3.9; 95% CI, 1.24-12.36), and contingent reward (OR=5.6; 95% CI, 1.87-17.01). CONCLUSION: Transformational styles had a positive impact on stimulating motivation, assuring job satisfaction, and consolidating teamwork among health workers compared with those who demonstrated transactional skills or laissez-faire styles. RECOMMENDATION: Supporting transformational leadership skills development in health facility leaders could encourage health worker motivation, strengthen job satisfaction, and maintain cohesion among health workers for better service delivery.
ABSTRACT
BACKGROUND: Rhomboids are ubiquitous proteins with unknown roles in mycobacteria. However, bioinformatics suggested putative roles in DNA replication pathways and metabolite transport. Here, mycobacterial rhomboid-encoding genes were characterized; first, using the Providencia stuartii null-rhomboid mutant and then deleted from Mycobacterium smegmatis for additional insight in mycobacteria. METHODOLOGY/PRINCIPAL FINDINGS: Using in silico analysis we identified in M. tuberculosis genome the genes encoding two putative rhomboid proteins; Rv0110 (referred to as "rhomboid protease 1") and Rv1337 ("rhomboid protease 2"). Genes encoding orthologs of these proteins are widely represented in all mycobacterial species. When transformed into P. stuartii null-rhomboid mutant (ΔaarA), genes encoding mycobacterial orthologs of "rhomboid protease 2" fully restored AarA activity (AarA is the rhomboid protein of P. stuartii). However, most genes encoding mycobacterial "rhomboid protease 1" orthologs did not. Furthermore, upon gene deletion in M. smegmatis, the ΔMSMEG_4904 single mutant (which lost the gene encoding MSMEG_4904, orthologous to Rv1337, "rhomboid protease 2") formed the least biofilms and was also more susceptible to ciprofloxacin and novobiocin, antimicrobials that inhibit DNA gyrase. However, the ΔMSMEG_5036 single mutant (which lost the gene encoding MSMEG_5036, orthologous to Rv0110, "rhomboid protease 1") was not as susceptible. Surprisingly, the double rhomboid mutant ΔMSMEG_4904-ΔMSMEG_5036 (which lost genes encoding both homologs) was also not as susceptible suggesting compensatory effects following deletion of both rhomboid-encoding genes. Indeed, transforming the double mutant with a plasmid encoding MSMEG_5036 produced phenotypes of the ΔMSMEG_4904 single mutant (i.e. susceptibility to ciprofloxacin and novobiocin). CONCLUSIONS/SIGNIFICANCE: Mycobacterial rhomboid-encoding genes exhibit differences in complementing aarA whereby it's only genes encoding "rhomboid protease 2" orthologs that fully restore AarA activity. Additionally, gene deletion data suggests inhibition of DNA gyrase by MSMEG_4904; however, the ameliorated effect in the double mutant suggests occurrence of compensatory mechanisms following deletion of genes encoding both rhomboids.
