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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Infant Behav Dev. 2013 Feb 28;36(2):255–267. doi: 10.1016/j.infbeh.2013.01.003

TABLE 1.

Demographic Data and Descriptive Statistics for Sample

Percentage M(SD) Range
Mother Age (years) 23.94 (4.27) 18–38
Education
 Some HS or HS degree 33.8
 Some college 48.1
 4-year college degree 7.8
 Graduate or professional degree 3.9
European American 81.0
Married 44.4
Family incomea,b 21,000–40,000 1–90,000
 Employed full-time 13.6
 Employed part-time 25.9
Child age (weeks) 21.12 (2.71) 16–32
 Female children 53
Postnatal CES-D Score 9.94(8.33) 0–37
 Depressed (CESD ≥16) 32 (n=19)
Expressive Suppression Score 2.00 (.11) 1.78–2.63
Baseline RSA .066 (.047) .00–.26
Mean Still Face RSA .104 (.066) .014–.30
Baseline Heart Rate 83.48 (10.13) 53.64–104.49
Mean Still Face Heart Rate 79.78 (9.50) 54.69–102.84
Mean Baseline Respiration 3.97 (2.46) 1.98–15.47
Mean Still Face Respiration 3.75 (1.90) 2.63–19.13
Movement .0172 (.008) 0.0–.04
a

Median is reported;

b

Income reported in dollars