Purpose
Despite the lack of data, it is believed that spirometry is underutilized in general practice. The aim of the present study was to explore the quality of spirometry and the impact of education on it by investigating the distribution and utilization of spirometry among different levels of public hospitals ( PHs ) in Hunan, south of China.
Methods
Research assistants interviewed all PHs to confirm the situation of spirometry ownership, use and training. Then collected 20 consecutive reports of pulmonary ventilation test reports (PVTRs) and basal information of those PHs which owned spirometry. To measure the effect of education, 28 randomly selected 2nd level PHs randomized to intervention and control group ( 14:14 ). One technicians was randomly selected to participate from each hospitals. Intervention group received one-day education which included face-to-face lectures and a hand-by-hand operation training course, control group received usual care. PVTRs were investigated 3 months after the intervention. All PVTRs were classified to grade A, B, C, D and F according to the Chinese PVT guidelines.
Results
We received 460 responses from 460 PHs with a recovery rate of 100%. The spirometry-equipped ratio was 1.6% (2/129) at 1st level, 39.0% (105/269) at 2nd level, 100.0% (62/62) at 3rd level PHs in Hunan. There were 100.0% (2/2), 91.4% (96/105) and 93.5% (58/62) utilization rate at 1st, 2nd and 3rd level PHs. Common reasons for not owning a spirometer were equipment cost (45%) and insufficient remuneration (38%). Lack of knowledge about spirometry (35%) and inadequate benefits (30%) were the top two reasons for low utilization rate. We received 3120 PVTRs from 156 PHs which used spirometry, a total of 50.4% (1574/3120) PVTRs got grade A, in which 33.3% (639/1920) at 2nd level PHs, and 79.1% (917/1160) at 3rd level PHs. Meanwhile a total of 27.6% (862/3120) PVTRs were judged as unreliable, in which 38.8% (745/1920) at 2nd level PHs, 8.7% (101/1160) at 3rd level PHs. Formal spirometry training wasn’t ever received through courses run by official organizations at 1st and 2nd level PHs. The technicians’ knowledge improved after education (8.6 ± 1.1 vs 9.8 ± 0.6) (P = 0.000). And 75.0% PVTRs got A grade in the intervention group, which was significantly higher than those in the control group ( 37.9%, P < 0.05).
Conclusions
The equipment ratio and the utilization rate of spirometry is still low and imbalanced among three levels PHs in Hunan. The quality of spirometry performed did not generally satisfy full acceptability and reproducibility criteria of Chinese guidelines. Educational program was useful to improve the quality of spirometry. This study serve to emphasize reasonable resources allocation and more comprehensive training in spirometry is needed in China.