Table 2.
Demographic characteristics of the families and treatment factors in the implementation and the randomized controlled trial intervention groups.
| Demographics | Implementation group (n=600) | Randomized controlled trial intervention (n=232) |
P value | |||||
| Parent and family characteristics | ||||||||
|
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Family structurea, n (%) | .54 | ||||||
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|
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Two biological parents | 489 (81.6) | 191 (83.5) |
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Single biological parent | 82 (13.7) | 24 (10.4) |
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Biological parent and foster parent | 19 (3.2) | 9 (3.9) |
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Other | 9 (1.5) | 5 (2.2) |
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|
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Age (years), mean (SD) | |||||||
|
|
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Maternal | 30.3 (4.8) | 30.5 (5.4) | .68 | |||
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Paternal | 32.7 (5.7) | 33.2 (5.9) | .28 | |||
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Maternal educationb, n (%) | .046 | ||||||
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Elementary school or less | 15 (2.5) | 13 (5.7) |
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Secondary education | 204 (34.2) | 85 (37) |
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College or university degree | 378 (63.3) | 132 (57.4) |
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Paternal educationc, n (%) | .28 | ||||||
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Elementary school or less | 27 (4.8) | 16 (7.4) |
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Secondary education | 280 (50.1) | 99 (45.8) |
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College or university degree | 252 (45.1) | 101 (46.8) |
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| Child characteristics, n (%) | ||||||||
|
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Sex | .82 | ||||||
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|
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Female | 238 (39.7) | 90 (38.8) |
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Male | 362 (60.3) | 142 (61.2) |
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Day care outside homed | .29 | ||||||
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|
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Yes | 476 (79.9) | 192 (83.1) |
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No | 120 (20.1) | 39 (16.9) |
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Behavioral problems | .18 | ||||||
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|
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Minor | 301 (50.2) | 129 (55.6) |
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Definite | 252 (42) | 92 (39.7) |
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Severe | 47 (7.8) | 11 (4.7) |
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Duration of problemse | .004 | ||||||
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<6 months | 193 (33) | 102 (45.1) |
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6-12 months | 155 (26.5) | 44 (19.5) |
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>12 months | 237 (40.5) | 80 (35.4) |
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| Program characteristics, mean (SD) | ||||||||
|
|
Total number of calls | 10.4 (2.5) | 10.1 (3.3) | .20 | ||||
|
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Duration of calls for the 11 themes (min) | 37.3 (11.0) | 37.3 (13.5) | .96 | ||||
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Duration of website access per theme (min) | 45.3 (19.3) | 47.8 (19.9) | .12 | ||||
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Total duration of calls (h) | 6.5 (2.4) | 6.4 (3.3) | .65 | ||||
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Total duration of website access (h) | 7.3 (2.8) | 7.5 (3.2) | .56 | ||||
|
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Total duration of program (h) | 13.8 (4.3) | 14.1 (5.4) | .49 | ||||
aMissing observations: implementation group (n=1); randomized controlled trial group (n=2).
bMissing observations: implementation group (n=3); randomized controlled trial group (n=2). Pairwise comparisons: elementary school or less versus secondary education (P=.06); elementary school or less versus college or university degree (P=.02); secondary education versus college or university degree (P=.28).
cMissing observations: implementation group (n=41); randomized controlled trial group (n=1).
dMissing observations: implementation group (n=4); randomized controlled trial group (n=1).
eMissing observations: implementation group (n=15); randomized controlled trial group (n=6). Pairwise comparisons: <6 months versus 6-12 months (P=.003); <6 months versus >12 months (P=.01); 6-12 months versus >12 months (P=.42).