The Parent-Child Early Relational Assessment (PCERA; Clark, 2010; Clark, 1999) was designed to assess mother-infant interaction. In this study PCERA was scored from a video of the feeding interaction. The PCERA is a 65-item observational rating scale (29 parental, 27 infant, and 8 dyadic), designed to assess the amount, duration, and intensity of interaction. Each item was rated on a 3-point ordinal scale with 1-2 indicating an area of concern, 3 indicating an area for some concern and 4- 5 indicating an area of strength. Eight subscales constructed from items of the PCERA have been theoretically derived and confirmed by factor analysis (Clark, 1999; Clark et al., 1997). For ease of analysis this scale was transformed to a -1 to +1 range. Scores were recorded as 1 or 2 = -1, 3= 0, 4 or 5 = 1. The total PCERA score is the mean of all the subscale mean scores and ranged -1 (highest risk of atypical interactions) to +1 (most positive interactions).

The Bayley-III is a norm references standardized developmental assessment of Motor, Cognitive, and Language skills. Composite scores for each domain have a mean of 100 and a standard deviation of 15. A score of 85-115 is considered average. Higher composite scores represent higher or better performance on that subtest. The Bayley was administered at the final follow-up visit and 3 months after the intervention ended.

The TIMP is a standardized and norm references test of motor control and posture in infants 4 months of age and younger which is commonly used with infants starting at 34 weeks of post-menstrual age. Change in raw score from baseline to end of the intervention is reported. The TIMP raw score ranges from 0 to 142. A higher score represented greater performance in motor control and posture.

Total of all reporting groups

Clinical cranial ultrasound in the neonatal period was used to document the presence of any reported intraventricular hemorrhage or periventricular leukomalacia as all included infants meet the clinical guidelines for having a cranial ultrasound in the neonatal intensive care unit. Radiology reports including a finding of Grade III/IV (severe) intraventricular hemorrhage, periventricular leukomalacia, or Diffuse brain injury were used to stratify infants into a severe brain injury group

Problem-solving behaviors were assessed using the Early Problem Solving Indicator (EPSI). The EPSI is the cognitive subtest of the Individual Growth and Development Indicators designed to measure infant and toddler play-based problem-solving through 36 months of age. It defines problem-solving as consisting of visual exploration, object manipulation and memory. The infant was video-recorded interacting with 3 standard toys: pop-up animals toy, 6 seriated, plastic cups, and a gum ball machine with 5 balls. Infants were given each toy for 2 minutes. The frequency of 4 mutually exclusive behaviors (look, explore, function, solution) were coded using definitions from the EPSI protocol. time. The total number of problem solving behaviors was calculated as a sum of look, explore, function, and solution for each infant at each visit and reported as the total EPSI frequency with a higher frequency reflecting more problem solving behaviors.

Same as primary population with the 2 infants lost to follow up not included.

The Early Feeding Skills (EFS) was used to assess the infant's oral feeding skills during the video recorded feeding described above. The EFS is a 26-item observational tool that can be used from the start of oral feeding through the maturation of feeding skills. Each item can score 1-3 with one representing the least skill or high frequency of problem (an area of clinical concern), and three representing mature skill or absence of problem (area of strength). Subscales included were ability to maintain engagement in feeding, ability to organize oral-motor functioning, ability to coordinate swallowing, and ability to maintain physiological stability. The sum of all the items in a subscale divided by the number of items in the subscale gives the subscale score of 1-3. The sum of all subscales was used to create an EFS total score which could range from 2 to 12 with a higher score reflecting a better feeding performance.

Some infants were not able to orally feed in which case this measure was not included. In addition, some visits were missing feeding assessments for missing data. Thus the sample included varied some between visits.

The Parent-Child Early Relational Assessment (PCERA; Clark, 2010; Clark, 1999) was designed to assess mother-infant interaction. In this study PCERA was scored from a video of the feeding interaction. The PCERA is a 65-item observational rating scale (29 parental, 27 infant, and 8 dyadic), designed to assess the amount, duration, and intensity of interaction. Each item was rated on a 3-point ordinal scale with 1-2 indicating an area of concern, 3 indicating an area for some concern and 4- 5 indicating an area of strength. Eight subscales constructed from items of the PCERA have been theoretically derived and confirmed by factor analysis (Clark, 1999; Clark et al., 1997). For ease of analysis this scale was transformed to a -1 to +1 range. Scores were recorded as 1 or 2 = -1, 3= 0, 4 or 5 = 1. The total PCERA score is the mean of all the subscale mean scores and ranged -1 (highest risk of atypical interactions) to +1 (most positive interactions).

The sample varied some between visits do to a lack of video taping the parent child interaction on a few occasions because the parent who consented to the study was not present at the time of the visit and the visit could not be rescheduled. The 3 month post intervention visit was dropped.

The Bayley-III is a norm references standardized developmental assessment of Motor, Cognitive, and Language skills. Composite scores for each domain have a mean of 100 and a standard deviation of 15. A score of 85-115 is considered average. Higher composite scores represent higher or better performance on that subtest. The Bayley was administered at the final follow-up visit and 3 months after the intervention ended.

At 3 months post intervention the sample was consistent with that described in the study sample post lose to followup.

The TIMP is a standardized and norm references test of motor control and posture in infants 4 months of age and younger which is commonly used with infants starting at 34 weeks of post-menstrual age. Change in raw score from baseline to end of the intervention is reported. The TIMP raw score ranges from 0 to 142. A higher score represented greater performance in motor control and posture.

Full Sample after infants lost to follow up who are not included in this analysis.

This group will receive and parent and physical therapy provided intervention to increase the infants opportunities for play which will enhance development.

SPEEDI Intervention: Behavioral intervention provided through a collaboration between the mother of enrolled subjects and a physical therapist. Intervention starts in the Neonatal Intensive Care Unit and continues after discharge. SPEEDI includes both parent education and developmental activities.