Top five highest incident emergent codes and categories from constant comparison analysis (all groups combined; total codes n=1035)
| Code-category | Five most frequent code topics | Frequency |
| General impressions on rising resistance | 401 | |
| Patient non-compliance | 15 | |
| Antibiotics development | 13 | |
| Hospital-specific issues, eg, hygiene, laboratories | 11 | |
| Antibiotic dosing | 10 | |
| Urinary tract infections | 10 | |
| Outpatient-specific influences on prescribing | 251 | |
| Patient history | 18 | |
| Patient demand | 18 | |
| Physician experience | 14 | |
| Patient self-education | 11 | |
| Patient compliance | 11 | |
| Sources of information on antibiotics | 234 | |
| Practice guidelines | 10 | |
| Continuing medical education | 8 | |
| Specialty journals | 8 | |
| Internet | 8 | |
| Quality of conferences | 7 | |
| Physician-oriented interventions | 84 | |
| Surveillance | 9 | |
| Laboratory feedback | 7 | |
| Information on local resistance situation | 7 | |
| Hospital | 4 | |
| Hygiene | 4 | |
| Hospital-specific influences on prescribing | 65 | |
| Up-to-date internal guidelines | 4 | |
| Laboratory/microbiologists exchange | 4 | |
| Specificity of internal guidelines | 4 | |
| Experience with infectious diseases | 3 | |
| Problematic diagnoses | 3 |