3.2. Practice pattern
Firstly, we calculate the frequency and percentage of a physiotherapist who used eighteen different intervention options (in table 1) . Among all eighteen interventions, the highest 92.4% physiotherapist frequently used exercise therapy, 83.2% occasionally used mechanical traction and 66.9% never used acupuncture, while the highest 37.6% participants said that Mindfulness-based stress reduction therapy was unknown to them. Figure 1 shows the average number of participants used three groups of interventions according to the frequency of use (frequently, occasionally, never). On average, 293 participants (69.3% of total) occasionally used not recommended intervention, 57 (13.5% of total) frequently and only 73 (17.3% of total) participants never used such intervention. For the partially recommended group, the average number of participants for frequent, occasional, and never used intervention was 141 (33.3% of total), 185 (43.7% of total), and 97 (23% of total) respectively. Nonetheless, only 52 (12.3% of total) participants frequently used recommended intervention on an average. One the other hand, on an average, 91 (21.5% of total) physiotherapist either do not offer or do not know about the recommended interventions.
Secondly, table 2 has shown the result of the analysis of good, moderate, and poor practice patterns after calculating given points to each physiotherapist for the choice of different group interventions. The prevalence of good practice among physiotherapist of Bangladesh were 14%, however, 62.4% and 23.6% did moderate and poor practice respectively. A higher number of the younger group (18-25 years of age) of physiotherapists do good practice. Among all the demographic and professional factors in this study, only the marital status (P = 0.003) and graduation institute category (P = 0.002) were significant factors for practice pattern variation (Table 2).
In addition to 18 interventions, we evaluated a diagnostic (radiological imaging) dependency, LBP patient category has commonly seen, and cure rate patterns. We estimated the dependency of a physiotherapist on radiological imaging for LBP diagnosis and found 97.8% physiotherapists either frequently or occasionally use x-ray and/or MRI. For LBP patient category, 67.2% of participants said that they have seen mainly chronic LBP patients in their practice. When asked cure rate, 46.8% physiotherapists claimed that the cure rate of their LBP patients was 71-90% and 35.7% said this rate was between 51-70%.