Respiratory disease

COPD

copd_exac_gprd Exacerbation of COPD (primary care)
copd_gprd COPD diagnosis (primary care)
copd_hes COPD diagnosis (secondary care)
mrc_breath_scale_gprd MRC Breathlessness Scale

Influenza

influenza_gprd Influenza diagnosis (primary care)
influenza_vacc Influenza vaccination (primary care)

Other respiratory diseases

respiratory_charlson_gprd Respiratory disease for Charlson index (primary care)
respiratory_charlson_hes Respiratory disease for Charlson index (secondary care)