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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: J Autism Dev Disord. 2014 Feb;44(2):381–393. doi: 10.1007/s10803-013-1876-x

Table 6.

Estimated Slope Differences Between Groups by Scale and Time Point

Activity Adaptability Approach
Time Point Slope Difference 95% CI Slope Difference 95% CI Slope Difference 95% CI
6 months −.508 −.971, −.046 −.777 −1.240, −.315 −.654 −1.117, −.192
12 months −.321 −.683, .041 −.384 −.746, −.022 −.282 −.644, .080
18 months −.134 −.439, .172 .010 −.296, .316 .090 −.216, .396
24 months .054 −.266, .373 .403 .084, .723 .462 .142, .782
36 months .428 −.078, .934 1.190 .684, 1.696 1.206 .700, 1.712