Returns chr vector of column names which follow format "condition" and "condition_date" e.g. "dementia" and "dementia_date"
See also
Other individual_file:
add_acute_columns()
,
add_ae_columns()
,
add_all_columns()
,
add_at_columns()
,
add_ch_columns()
,
add_cij_columns()
,
add_cmh_columns()
,
add_dd_columns()
,
add_dn_columns()
,
add_gls_columns()
,
add_hc_columns()
,
add_hl1_columns()
,
add_ipdc_cols()
,
add_keep_population_flag()
,
add_mat_columns()
,
add_mh_columns()
,
add_nrs_columns()
,
add_nsu_columns()
,
add_ooh_columns()
,
add_op_columns()
,
add_pis_columns()
,
add_sds_columns()
,
add_standard_cols()
,
clean_up_ch()
,
create_individual_file()
,
recode_gender()
,
remove_blank_chi()