Manuscript Details

Source

Olds, D. L., Robinson, J., O’Brien, R., Luckey, D. W., Pettitt, L. M., Henderson, C. R., et al. (2002). Home visiting by paraprofessionals and by nurses: A randomized, controlled trial. Pediatrics, 110(3), 486.

High rating
Study reviewed under: Handbook of Procedures and Standards, Version 1

Note: Navigate to model page for more information about the home visiting model. See the study manuscript for more information about how the model was implemented in this study.

Author Affiliation

David L. Olds, a study author, is a developer of this model.

Funding Sources

The Colorado Trust (93059); a contract with Abt Associates (105–94-1925) under a grant from the Administration for Children and Families (HHS); and a Senior Research Scientist Award to David Olds from the National Institute of Mental Health (K05-MH01382).

Study Design

Design Attrition Baseline equivalence Confounding factors Valid, reliable measures?
Randomized controlled trial Low

Established for race/ethnicity and SES

None

Not assessed in manuscripts reviewed under Handbook of Procedures and Standards, Version 1
Notes

Information on sample sizes for this study was received through communication with the authors. HomVEE previously rated 24-month outcomes for nurse home visitors Moderate due to high attrition. Upon further examination, HomVEE noted that the outcomes had low attrition, and therefore they rate High.

This study received a mixed rating. All of the outcomes comparing paraprofessional-visited mothers versus the control condition for the main sample rate high. Outcomes for the low resources subgroup, for both the nurse-visited and paraprofessional-visited versus control comparisons, rate high. In addition, outcomes for the main sample for the nurse-visited versus control comparison at the 21-month follow-up rate high. Due to high attrition, the nurse-visited versus control comparison for the other follow-ups rate moderate.

Study Participants

Women were recruited through 21 antepartum clinics that served low-income pregnant women. Recruitment focused on women who had no previous live births and either qualified for Medicaid or had no private health insurance. From March 1994 through June 1995, 1,178 women were invited to participate and 735 consented and were randomly assigned to one of three conditions: a control group, nurse home visiting, and paraprofessional home visiting. Randomization was conducted within strata based on maternal race (Hispanic, white, black, American Indian, or Asian), maternal gestational age (less than 32 weeks, 32 weeks or more), and geographic region. This study measures the sample when the children were 6 months to 2 years old. The study sample at the 24-month parent interview included 630 women, 194 in the nurse home visiting program group, 213 in the paraprofessional home visiting program group, and 223 in the comparison group.

Setting

Denver, Colorado metropolitan area

Home Visiting Services

The study included two program groups: one serviced by paraprofessionals and one serviced by nurses. Women assigned to both groups received developmental screening and referral services for their children and home visits during pregnancy and infancy (until the child was 2 years old). Both groups had the same goals: (1) to improve women’s health-related behavior, (2) to support parents in providing competent care, and (3) to encourage planning future pregnancies and promote education and employment. Paraprofessionals conducted 6.3 home visits on average during pregnancy and 16 visits during infancy. Nurses conducted 6.5 home visits on average during pregnancy and 21 visits during infancy.

Note: Navigate to model page for more information about the home visiting model. See the study manuscript for more information about how the model was implemented in this study.

Comparison Conditions

Women in the comparison group received developmental screening and referral services for their children at 6, 12, 15, 21, and 24 months.

Were any subgroups examined?
Yes
Subgroups examined

• Mother has psychological vulnerability (yes or no) • Smoking status (current smoker)

Findings that rate moderate or high in this manuscript

Maternal health
Outcome measure Timing of follow-up Rating Direction of Effect Effect size (absolute value) Stastical significance Sample size Sample description

Use of preventative services

36 weeks (prenatal)

Moderate
0.09

Not statistically significant,
p > 0.05

353 mothers

Nurse home visitor and comparison (Denver)

Use of emergency services

36 weeks (prenatal)

Moderate
0.27

Not statistically significant,
p > 0.05

353 mothers

Nurse home visitor and comparison (Denver)

Subsequent pregnancy (24 months postpartum)

24 months

High
0.32

Statistically significant,
p ≤ 0.05

436 mothers

Nurse home visitor and comparison (Denver)

Subsequent birth (24 months postpartum)

24 months

High
0.33

Statistically significant,
p ≤ 0.05

436 mothers

Nurse home visitor and comparison (Denver)

Use of preventative services

36 weeks (prenatal)

High

Not statistically significant,
p > 0.05

344 mothers

Paraprofessional home visitor and comparison (Denver)

Use of emergency services

36 weeks (prenatal)

High
0.00

Not statistically significant,
p > 0.05

344 mothers

Paraprofessional home visitor and comparison (Denver)

Subsequent pregnancy (24 months postpartum)

24 months

High
0.21

Not statistically significant, p > 0.05

417 mothers

Paraprofessional home visitor and comparison (Denver)

Subsequent birth (24 months postpartum)

24 months

High
0.27

Not statistically significant, p > 0.05

417 mothers

Paraprofessional home visitor and comparison (Denver)

Effect rating key
Favorable finding / Statistically significant
Unfavorable finding / Statistically significant
Ambiguous finding / Statistically significant
No effect / Not statistically significant
Child development and school readiness
Outcome measure Timing of follow-up Rating Direction of Effect Effect size (absolute value) Stastical significance Sample size Sample description

Infant vulnerability: fear stimuli (video coding)

6 months

Moderate
0.34

Statistically significant,
p ≤ 0.05

363 children

Nurse home visitor and comparison (Denver)

Infant low vitality: joy stimuli (video coding)

6 months

Moderate
0.23

Not statistically significant,
p > 0.05

363 children

Nurse home visitor and comparison (Denver)

Infant low vitality: anger stimuli (video coding)

6 months

Moderate
0.31

Not statistically significant,
p > 0.05

363 children

Nurse home visitor and comparison (Denver)

Irritable temperament

6 months

Moderate

Not statistically significant,
p > 0.05

363 children

Nurse home visitor and comparison (Denver)

BSID MDI

24 months

Moderate

Not statistically significant,
p > 0.05

372 children

Nurse home visitor and comparison (Denver)

BSID, MDI: Mental development delay

24 months

Moderate
0.12

Not statistically significant,
p > 0.05

372 children

Nurse home visitor and comparison (Denver)

CBCL (Behavior problems score)

24 months

Moderate

Not statistically significant,
p > 0.05

372 children

Nurse home visitor and comparison (Denver)

PLS-3 (language delay)

21 months

High
0.45

Statistically significant,
p ≤ 0.05

406 children

Nurse home visitor and comparison (Denver)

PLS-3 (language development)

21 months

High

Not statistically significant, p ≥ 0.05

406 children

Nurse home visitor and comparison (Denver)

Vulnerable: fear stimuli (video coding)

6 months

High
0.25

Not statistically significant,
p > 0.05

377 children

Paraprofessional home visitor and comparison (Denver)

Low vitality: joy stimuli (video coding)

6 months

High
0.08

Not statistically significant,
p > 0.05

377 children

Paraprofessional home visitor and comparison (Denver)

Low vitality: anger stimuli (video coding)

6 months

High
0.06

Not statistically significant,
p > 0.05

377 children

Paraprofessional home visitor and comparison (Denver)

Irritable temperament (video coding)

6 months

High

Not statistically significant,
p > 0.05

377 children

Paraprofessional home visitor and comparison (Denver)

PLS-3 (language delay)

21 months

High
0.06

Not statistically significant,
p > 0.05

420 children

Paraprofessional home visitor and comparison (Denver)

PLS-3 (language development)

21 months

High

Not statistically significant,
p > 0.05

420 children

Paraprofessional home visitor and comparison (Denver)

BSID (mental development delay)

24 months

High

Not statistically significant,
p > 0.05

392 children

Paraprofessional home visitor and comparison (Denver)

BSID (Mental Developmental Index)

24 months

High

Not statistically significant,
p > 0.05

392 children

Paraprofessional home visitor and comparison (Denver)

CBCL

24 months

High

Not statistically significant,
p > 0.05

392 children

Paraprofessional home visitor and comparison (Denver)

PLS-3 (language delay)

21 months

High
0.45

Statistically significant,
p ≤ 0.05

406 children

Nurse home visitor and comparison (Denver)

PLS-3 (language development)

21 months

High

Not statistically significant,
p > 0.05

406 children

Nurse home visitor and comparison (Denver)

Subgroups
Outcome measure Timing of follow-up Rating Direction of Effect Effect size (absolute value) Stastical significance Sample size Sample description

Infant vulnerability: fear stimuli (video coding)

6-month follow-up

High
0.34

Not statistically significant,
p > 0.05

138 children

Nurse home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

Infant low vitality: joy stimuli (video coding)

6-month follow-up

High
0.45

Statistically significant,
p ≤ 0.05

138 children

Nurse home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

Infant low vitality: anger stimuli (video coding)

6-month follow-up

High
0.31

Statistically significant,
p ≤ 0.05

138 children

Nurse home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

Irritable temperament

6-month follow-up

High

Not statistically significant,
p > 0.05

138 children

Nurse home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

PLS-3 (language delay)

21-month follow-up

High
0.65

Statistically significant,
p ≤ 0.05

142 children

Nurse home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

PLS-3 (language development)

21-month follow-up

High

Statistically significant,
p ≤ 0.05

142 children

Nurse home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

BSID (mental development delay)

24-month follow-up

High
0.12

Not statistically significant,
p > 0.05

136 children

Nurse home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

BSID (mental development index)

24-month follow-up

High

Statistically significant,
p ≤ 0.05

136 children

Nurse home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

CBCL

24-month follow-up

High

Not statistically significant,
p > 0.05

136 children

Nurse home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

Infant vulnerability: fear stimuli (video coding)

6-month follow-up

High
0.16

Not statistically significant,
p > 0.05

158 children

Paraprofessional home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

Infant low vitality: joy stimuli (video coding)

6-month follow-up

High
0.27

Not statistically significant,
p > 0.05

158 children

Paraprofessional home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

Infant low vitality: anger stimuli (video coding)

6-month follow-up

High
0.31

Not statistically significant,
p > 0.05

158 children

Paraprofessional home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

Irritable temperament

6-month follow-up

High

HomVEE = > 0.05

158 children

Paraprofessional home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

PLS-3 (language delay)

21-month follow-up

High
0.23

Not statistically significant,
p > 0.05

163 children

Paraprofessional home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

PLS-3 (language development)

21-month follow-up

High

Not statistically significant,
p > 0.05

163 children

Paraprofessional home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

BSID (Mental development delay)

24-month follow-up

High
0.00

Not statistically significant,
p > 0.05

163 children

Paraprofessional home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

BSID (Mental development index)

24-month follow-up

High

Not statistically significant,
p > 0.05

163 children

Paraprofessional home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

CBCL

24-month follow-up

High

Not statistically significant,
p > 0.05

163 children

Paraprofessional home visitors and comparison (Denver); Subgroup: Mother has psychological vulnerability

Effect rating key
Favorable finding / Statistically significant
Unfavorable finding / Statistically significant
Ambiguous finding / Statistically significant
No effect / Not statistically significant
Positive parenting practices
Outcome measure Timing of follow-up Rating Direction of Effect Effect size (absolute value) Stastical significance Sample size Sample description

HOME environment score

Unknown

Moderate

Not statistically significant,
p > 0.05

406 mothers

Nurse home visitor and comparison (Denver)

Mother-infant responsive interaction

Unknown

Moderate

Statistically significant,
p ≤ 0.05

372 mothers

Nurse home visitor and comparison (Denver)

HOME environment score

21 months

High

Not statistically significant,
p > 0.05

420 mothers

Paraprofessional home visitor and comparison (Denver)

Mother-infant responsive interaction

24 months

High

Not statistically significant, p ≥ 0.05

392 mothers

Paraprofessional home visitor and comparison (Denver)

Effect rating key
Favorable finding / Statistically significant
Unfavorable finding / Statistically significant
Ambiguous finding / Statistically significant
No effect / Not statistically significant
Family economic self-sufficiency
Outcome measure Timing of follow-up Rating Direction of Effect Effect size (absolute value) Stastical significance Sample size Sample description

Educational achievement (years)

21 months

High

Not statistically significant,
p ≥ 0.05

427 mothers

Nurse home visitor and comparison (Denver)

Months employed (1–12 months postpartum)

12 months

Moderate

Not statistically significant,
p ≥ 0.05

406 mothers

Nurse home visitor and comparison (Denver)

Months on AFDC (1–12 months postpartum)

12 months

Moderate

Not statistically significant,
p ≥ 0.05

406 mothers

Nurse home visitor and comparison (Denver)

Months employed (13–24 months postpartum)

24 months

Moderate

Statistically significant,
p ≤ 0.05

419 mothers

Nurse home visitor and comparison (Denver)

Months on AFDC (13–24 months postpartum)

24 months

Moderate

Not statistically significant,
p ≥ 0.05

419 mothers

Nurse home visitor and comparison (Denver)

Months employed (1–12 months postpartum)

12 months

High

Not statistically significant,
p ≥ 0.05

425 mothers

Paraprofessional home visitor and comparison (Denver)

Months on AFDC (1–12 months postpartum)

12 months

High

Not statistically significant,
p ≥ 0.05

425 mothers

Paraprofessional home visitor and comparison (Denver)

Educational achievement (years)

21 months

High

Not statistically significant,
p ≥ 0.05

440 mothers

Paraprofessional home visitor and comparison (Denver)

Months employed (13–24 months postpartum)

24 months

High

Not statistically significant,
p ≥ 0.05

439 mothers

Paraprofessional home visitor and comparison (Denver)

Months on AFDC (13–24 months postpartum)

24 months

High

Not statistically significant,
p ≥ 0.05

439 mothers

Paraprofessional home visitor and comparison (Denver)

Effect rating key
Favorable finding / Statistically significant
Unfavorable finding / Statistically significant
Ambiguous finding / Statistically significant
No effect / Not statistically significant