The efficacy of therapy for CNDI (a) and acquired NDI (b). The patients
in whom the treatment reduced urine volume are depicted with an open bar, and patients in whom
treatment did not reduce urine volume are depicted with a closed bar. CNDI, congenital NDI; DDAVP,
desmopressin acetate; NDI, nephrogenic diabetes insipidus; NSAID, non-steroidal anti-inflammatory agent.