Table 1 Varying definitions of NCDs

• Conditions were defined as chronic according to whether they lasted 12 months or longer and (1) limited independent living, social interactions, or self-care or (2) required ongoing intervention with medical services, products or equipment

• Chronic medical condition was defined as being recognized and treated for 3 months or more prior to pregnancy, requiring medical attention or medication, and known to be persistent, incurable, and may worsen over time

• Chronic conditions that are treatable but seldom curable

• Chronic conditions, each associated with obstetric morbidity and mortality

• NCDs, often referred to as chronic illnesses, are non-transmissible diseases that may be caused by genetic or behavioral factors, and generally have a slow progression and long duration

• “Silent diseases”; (conditions which) “cause a gradual deterioration in health”