Video Abstracts -- brief videos summarizing key findings of new articlesAdult Talk in the NICU With Preterm Infants and Developmental Outcomes
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Tables
- TABLE 1
Maternal and Infant Characteristics
Characteristic Valuea Male gender 15 (41.7) Gestational age, wk 27 ± 2 Birth weight, g 896 ± 195 Maternal age, y 30.8 ± 7 Gravida 1 12 (42.9) Race African American 6 (21.4) Hispanic 4 (14.2) White 18 (64.3) Mother’s education <High school 4 (14.3) High school/partial college 13 (46.4) College/graduate 10 (35.7) Unknown 1 (3.6) Family history of language delay 7 (19.4) SNAPPE-II score, day 1 27.5 ± 17 SNAPPE-II score, day 3 20.7 ± 17 IVH (grade III or IV) or PVL 2 (5.6) ROP (any) 12 (33) Chronic lung disease (36 wk) 10 (27.8) Hearing failed unilateral at discharge 4 (11.1) Hearing failed bilateral at discharge 0 (0) Data are presented as n (%) or mean ± SD. IVH, intraventricular hemorrhage; PVL, periventricular leukomalacia; ROP, retinopathy of prematurity; SNAPPE-II, Score for Neonatal Acute Physiology–Perinatal Extension II.
↵a Includes values for 36 infants, 28 mothers.
- TABLE 2
Increase in Adult Words, Child Vocalizations, and Conversational Turns Over Time
Vocalization Counts 32 Weeks (n = 35) 36 Weeks (n = 33) Percent Change (95% CI) Total adult words Mean ± SD 3306 ± 4274 8556 ± 6407 160 Median 1289 8255 74–287 Range 144–16 549 374–26 145 Total conversational turns Mean ± SD 25 ± 29 48 ± 45 96 Median 15 36 32–192 Range 0–105 3–188 Total child vocalizations Mean ± SD 113 ± 101 195 ± 156 76 Median 77 153 30–138 Range 10–374 21–705 Analysis for change over time estimated by using negative binomial regression with generalized estimating equations.
- TABLE 3
Mean Bayley-III Measures for Study Patients
Bayley-III Measure 7 Months (n = 32) 18 Months (n = 31) Cognitive composite score 94 ± 8 (80–110) 91 ± 10 (65–105) Language composite score 78 ± 9 (65–103) 85 ± 15 (59–127) Receptive communication scaled score 6 ± 2 (3–11) 7 ± 3 (3–14) Expressive communication scaled score 7 ± 2 (3–11) 8 ± 3 (3–15) Data are presented as mean ± SD (range).
- TABLE 4
Correlations of LENA Variables at 32 and 36 Weeks’ Corrected Age Recordings With 7- and 18-Month Bayley-III Scores
32-week recordings CC LC RC EC 7 Months (n = 32) 18 Months (n = 31) 7 Months (n = 28) 18 Months (n = 31) 7 Months (n = 32) 18 Months (n = 31) 7 Months (n = 28) 18 Months (n = 31) Adult words/h 0.24 0.27 0.27 0.45* 0.35** 0.32* 0.08 0.53* Conversational turns/h 0.36* 0.18 0.37* 0.41* 0.36* 0.23 0.24 0.54* Child vocalizations/h 0.23 0.20 0.24 0.22 0.27 0.06 0.11 0.35** 36-week recordings CC LC RC EC 7 Months 18 Months 7 Months 18 Months 7 Months 18 Months 7 Months 18 Months (n = 30) (n = 29) (n = 26) (n = 29) (n = 30) (n = 29) (n = 26) (n = 29) Adult words/h 0.48* 0.08 0.18 0.30 0.13 0.13 0.12 0.44* Conversational turns/h 0.50* −0.02 0.34 0.06 0.23 −0.06 0.31 0.19 Child vocalizations/h 0.44* −0.17 0.36 −0.05 0.25 −0.09 0.31 0.01 Zero-order Pearson correlations for 32- and 36-week recordings and 7- and 18-month Bayley-III scores. *P < .05; **P = .05. CC, cognitive composite score; LC, language composite score; RC, receptive communication score; EC, expressive communication score.
- TABLE 5
Regression Analysis of LENA Measures at 32- and 36 Weeks and Bayley-III Scores, Adjusted for Birth Weight
LENA Measure/Bayley-III ba P Model R2 LENA Partial r2 32 weeks, adult word count/h Receptive communication, 7 mo 0.3 .0413 0.14 0.14 Language composite, 18 mo 2.0 .0404 0.25 0.12 Expressive communication, 18 mo 0.5 .0081 0.30 0.20 36 weeks, adult word count/h Cognitive composite, 7 mo 1.2 .0049 0.26 0.26 Expressive communication, 18 mo 0.3 .0701 0.24 0.10 ↵a Unstandardized regression coefficient adjusted for birth weight (units: per 100 adult words/hour).
