highly significantP < .001
Analysis of variance revealed highly significant differences between the profile groups in 1997 ( F = 164.69, P < .001), 2001 ( F = 51.85, P < .001), and 2007 ( F = 40.03, P < .001).
Analysis of variance revealed highly significant differences between the profile groups in 1997 ( F = 164.69, P < .001), 2001 ( F = 51.85, P < .001), and 2007 ( F = 40.03, P < .001).