BackgroundProviding good quality primary health care to all inhabitants is one of the Chinese Government’s health care objectives. However, information is scarce regarding the difference in quality of primary health care delivered to migrants and local residents respectively. This study aimed to compare patients’ perceptions of quality of primary health care between migrants and local patients, and their willingness to use and recommend primary health care to others.MethodsA cross-sectional survey was conducted. 787 patients in total were chosen from four randomly drawn Community Health Centers (CHCs) for interviews.ResultsLocal residents scored higher than migrants in terms of their satisfaction with types of drugs available (3.62 vs. 3.45, p = 0.035), attitude of health workers (4.41 vs. 4.14, p = 0.042) and waiting time (4.30 vs. 3.86, p < 0.001). Even though there was no significant difference in overall satisfaction between local residents and migrants (4.16 vs. 3.91, p = 0.159), migrants were more likely to utilize primary health care as the first choice for their usual health problems (94.1% vs. 87.1%, p = 0.032), while local residents were more inclined to recommend Traditional Chinese Medicine to others (65.6% vs. 56.6%, p = 0.026).ConclusionsQuality of primary health care given to migrants is less satisfactory than to local residents in terms of attitude of health workers and waiting time. Our study suggests quality of care could be improved through extending opening hours of CHCs and strengthening professional ethics education. Considering CHCs as the first choice by migrants might be due to their health insurance scheme, while locals’ recommendations for traditional Chinese medicine were possibly because of cultural differences.

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A novel solution to twin-image disturbance in in-line X-ray holography is presented. By computer simulation, this two-hologram-based digital way is proved to be efficient, while conditions relating to experiments are taken into account.