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Table 4 Follow-up interval and improvement of pMDI technique

From: Effectiveness of one-on-one coaching in improving pressurized metered dose inhaler (pMDI) technique among COPD patients: a prospective clinical study

Follow-up interval Number of patients Number of patients with improvement at follow-up Percentage (%) of patients with improvement
1–3 months 25 9 36%
3–6 months 25 6 24%
6–9 months 18 2 11%
9–12 months 4 2 50%