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. Author manuscript; available in PMC: 2016 Aug 1.
Published in final edited form as: Prev Sci. 2015 Aug;16(6):765–777. doi: 10.1007/s11121-015-0572-9

Table 3.

Estimates by randomized trial and pooled estimates for 10 dichotomous NFP program outcomes

DOMAIN Community, Details of Measure, First Author (Year) Control Cases Yes (% or mean) Treatment Cases Yes (% or mean) Relative Risk Decline 95% CI
Pre-eclampsia
Elmira, whites only, Olds et al. (1986) 142 7.0% 166 4.0% 42.9% [-48.7%, 78.0%]
Memphis, Kitzman et al. (1997) 671 20.0% 455 13.0% 35.0% [13.8%, 51.0%]
Pooled (p<.001) 813 17.7% 621 10.6% 40.0% [21.2%, 54.3%]
Preterm First Birth
Denver, Olds et al. (2002) 237 10.1% 222 10.4% -2.3% -[75.9%, 40.5%]
Elmira, includes nonwhites, M. Knudtson, personal communication (2013) 160 7.5% 192 7.3% 2.8% [-104.2%, 53.7%]
Louisiana, Sonnier et al. (2007) 88 12.5% 151 6.0% 52.3% [-10.5%, 79.4%]
Memphis, Kitzman et al. (1997) 633 12.0% 426 10.3% 14.0% [-22.1%, 39.4%]
Orange County, Nguyen et al. (2003) 85 8.2% 69 4.3% 47.2% [21.0%, 94.0%]
Best Estimate: 5 pooled US trials (p = .053) 1203 10.8% 1,060 8.8% 18.8% [-4.6%, 37.0%]
Netherlands, Mejdoubi et al. (2013) 143 7.0% 186 8.6% -23.0% [-162.9%, 42.4%]
All NFP 2005-07 vs US age-matched, NFP NSO (2014); National Center for Health Statistics (n.d.) 13.3% 9.3% 30.1%
Oklahoma single birth very preterm <30 weeks, NFP vs other first time, Carabin et al. (2005)a 8,598 0.7% 55,737 0.9% 27.1% [4.7%, 44.3%]
Central Ohio, Allen et al. (2010) vs undescribed local comparison group - - >220 - 37-45% -
Mortality
Memphis thru age 9, Olds et al. (2007) (p=.08) 489 2.04% 217 0.46% 77.5% [-74.9%, 97.1%]
Memphis thru age 20, preventable-cause deaths, Olds et al. (2014b) (p=.04) 489 1.84% 217 0% 100.0% Cannot compute
Denver infant, Olds et al. (2004b) 237 0.84% 222 0.45% 46.6% [-484.6%, 95.1%]
Oklahoma, before age 1, NFP vs other first time, Carabin et al. (2005)a 55,737 0.55% 8,598 0.29% 47.6% [21.2%, 65.1%]
Oklahoma, unmarried, before age 1, NFP vs other first time, Carabin et al. (2005)b 22,556 - 5,239 - 64% [37%, 83%]
Oklahoma, mix of endpoints, ages between 1and 5, NFP vs other first time, Cox (2006)a - 0.82% 12,474 0.34% 58.7% [44%, 70%]
Cincinnati, infant, NFP or a 2nd program vs other local, Donovan et al. (2007) 2,145 2.10% 715 0.70% 66.7% [16.5%, 86.7%]
Breastfeeding Attempted
Elmira, attempt, whites only, Olds et al. (1983) 121 31.0% 68 36.0% 16.2% [-23.1%, 75.8%]
Memphis, at 6 months, Kitzman et al. (1997) 471 15.7% 211 26.1% 65.9% [21.8%, 125,9%]
Pooled (p =.001) 592 18.8% 279 28.5% 51.3% [17.8%, 94.3%]
Netherlands attempt, Mejdoubi et al. (2014) 109 78.0% 158 82.3% 5.5% [-6.7%, 19.4%]
Netherlands at 6 months, Mejdoubi et al. (2014) 108 5.6% 156 13.5% 142.3% [1.1%, 480.4%]
NYC, attempt vs first-time Medicaid, NYC Dept of Health & Mental Hygiene (2013) - 86% V 91% 5.8% -
NYC, exclusive at 2 months, NYC Dept of Health & Mental Hygiene (2013) - 30% - 40% 33.3% -
All NFP in 2009, attempt, NFP NSO (2014) vs all WIC-eligible, Johnson et al. (2012) 1,400,000 67.1% 13,490 79.1% 17.9% -
Child Injury at Ages 0-2
Elmira, 0-24 months, whites only, Olds et al. (1986) 121 40.0% 75 27.0% 32.5% [-3.9%, 56.2%]
Memphis, 0-24 months, unpublished 2006 reanalysis with improved statistical methods, D Olds, personal communication (2011) 467 56.0% 208 42.0% 39.1% [27.8%, 48.7%]
Louisiana, 0-15 months, Sonnier (2007) 116 69.0% 66 34.5% 50.0% [28.8%, 64.9%]
Pooled (p<.001) 704 64.0% 349 37.4% 41.6% [32.4%, 49.6%]
Pennsylvania, 0-24 months, ED-treated, Matone et al. (2012b) 16,704 36.4% 5,016 41.5% -14.0% [-9.7%, -18.5%]
Child Maltreatment
Elmira, ages 4-15 years, Eckenrode et al., 2000 184 73% 116 44% 39.7% [22.8%, 53.0%]
Netherlands, 0-36 months, Mejdoubi et al. (2015) 164 18.9% 168 10.7% 43.3% [2.8%, 67.0%]
Second Birth Within 24 Months
Elmira low-income whites, Olds et al. (1988) 52 39.0% 25 10.8% 72.2% [10.0%, 91.4%]
Memphis, Kitzman et al. (1997) 467 31.0% 208 22.0% 29.0% [5.2%, 46.9%]
Denver, Olds et al. (2002) 223 19.0% 194 12.0% 36.8% [-0.01%, 60.4%]
Pooled (p<.001) 742 28.0% 427 16.8% 39.9% [23.5%, 52.7%]
Pennsylvania, 2000-2003, Rubin et al. (2010) - 18.9% - 19.3% -9% [-26%, 5%]
Pennsylvania, 2004-2005, Rubin et al. (2010) - 19.0% - 16.8% 13% [4%, 20%]
Abortion Within 48 Months
Elmira low-income whites, Olds et al. (1988) 54 12.0% 28 10.0% 16.7% [-213.6%, 77.9%]
Memphis, Kitzman et al. (2000) 443 10.0% 203 5.0% 50.0% [3.1%, 74.2%]
Denver, Olds et al. (2004b) 220 5.2% 204 4.9% 5.7% [-115.5%, 58.8%]
Pooled (p=.034) 717 8.7% 435 5.3% 39.2% [3.3%, 61.8%]
Intimate Partner Violence Through Age 4
a. Denver, ages 0-6 mos, M. Knudtson, personal communication (2014) 220 12.7% 184 10.3% 18.9% [-40.4%, 53.1%]
b. Denver, ages 6-12 months, same source as a 219 9.6% 187 10.2% -6.0% [-91.0%, 41.2%]
c. Denver, ages 15-21 monthss, same source as a 225 9.3% 202 8.9% 4.5% [-74.0%, 47.6%]
d. Denver, age 4, Olds et al. (2004b) 220 10.0% 204 4.9% 51.0% [-0.1%,76.2%]
e. Denver pooled ages 0-4 884 10.4% 777 8.5% 18.4% [-10.3%, 39.6%]
f. Memphis, ages 0-5, Olds et al. (2004a), recall-adjusted 6 month 444 18.2% 197 17.8% 1.8% [-21.1%. 20.4%]
g. Louisiana, ages 0-1, Nagle (2002) 63 28.6% 56 19.6% 31.3% [-32.8%, 64.4%]
Best US estimate per 6 months, ages 0-4; pool e, f, g (p=.036) 1,391 13.7% 1,030 10.9% 20.6% [1.1%, 36.1%]
Netherlands, ages 1-2, Mejdoubi et al. (2013), recall-adjusted 6 month 223 37.7% 237 22.4% 40.5% [22.8%, 54.1%]
All NFP, intake vs 36 weeks, NFP NSO (2014) 83,313 2.9% 83,313 1.8% 37.9% [33.9%. 41.8%]
Youth Arrests, Lifetime
Elmira, ages 11-19, Eckenrode et al. (2010) 140 0.86 91 0.37 57.0% [20%, 77%]

Note: NS=Not significant - = Not reported

a

The control group had higher income and marriage rates. The article lacked data needed to combine its regression adjusted estimates. Looking across 4 subgroups, it seemed unlikely that preterm births declined.

b

Comparison group estimate regression-adjusted for equivalency.