Table 3 FNP fidelity goals [47, 48, 72]

Recruitment and enrolment

• at least 60% enrolled before 16 weeks of pregnancy and 100% no later than 28 weeks

• 100% of clients enrolled are first-time mothers

• 100% of clients enrolled are 19 years or younger at LMP

• 75% of eligible clients who are offered the programme are enrolled

• each family nurse enrols 25 families (or pro rata) within 9 months of recruitment

Attrition

Clients leave the programme at no more than these rates:

• cumulative programme attrition is 40% or less through to the child’s second birthday

In detail:

• 10% or less during the pregnancy phase

• 20% or less during the infancy phase

• 10% or less during toddlerhood

Dosage

Clients receive:

• 80% or more of expected visits during pregnancy

• 65% or more of expected visits during infancy

• 60% or more of expected visits during toddlerhood

On average, length of home visits is around 60 minutes