Fix PDC-001 query to handle null genders
Fix PDC-001 query to handle null genders

Signed-off-by: Jeremy Ho <2afe03cd4357ca2b7c19ef9f5a523dd58b97f49a@gmail.com>

scoophealth/query-gateway,rrusk/scoop-query-gateway,rrusk/scoop-query-gateway,scoophealth/query-gateway,rrusk/scoop-query-gateway,scoophealth/query-gateway,scoophealth/query-gateway,rrusk/scoop-query-gateway,rrusk/scoop-query-gateway