The impact of rural-exposure strategies on the intention of dental students and dental graduates to practice in rural areas: a systematic review and meta-analysis.
OBJECTIVE
The objective of this study was to assess the impact of strategies on the intention of dental students/graduates to practice in rural areas. The strategies included the recruitment of dental students from rural backgrounds and clinical rotations in rural areas during the training of dental students.


METHODS
The study undertook a systematic review and utilized meta-analysis to assess these strategies. International literature published between 2000 and 2015 was retrieved from three main search engines: Medline, Embase, and Scopus. The selected articles were scanned to extract the main content. The impact of the strategies was quantitatively assessed by meta-analysis, using the random-effect model. The pooled effect was reported in terms of odds ratios (ORs) with 95% confidence intervals. Sensitivity and subgroup analyses were performed. Publication bias was assessed by the Funnel plot and Egger's test.


RESULTS
Seven of the initially selected 897 articles were included for the full review. The majority of the selected articles had been published in developed countries. The meta-analysis results revealed that the pooled OR of rural exposure on the intention to practice in rural areas was approximately 4.1, statistically significant. Subgroup analysis showed that clinical rotations in rural areas tended to have a slightly greater influence on rural dental practice than recruiting students from rural backgrounds (OR 4.3 versus 4.2). There was weaker evidence of publication bias, which was derived from small-study effects.


CONCLUSIONS
Enrolling students with rural backgrounds and imposing compulsory clinical rotation in rural areas during their study appeared to be effective strategies in tackling the shortage and maldistribution of dentists in rural areas.
International Health Policy Program, Ministry of Public Health, Nonthaburi, Thailand.
Rapeepong
R
Suphanchaimat
International Health Policy Program, Ministry of Public Health, Nonthaburi, Thailand.
Nisachol
N
Cetthakrikul
Master's Student, School of Oriental and African Studies, University of London, London, UK.
Alexander
A
Dalliston
International Health Policy Program, Ministry of Public Health, Nonthaburi, Thailand.
Weerasak
W
Putthasri
dental graduates; dental students; meta-analysis; rural background; rural retention; systematic review