highly significantP < 0.0005
This relationship was also highly significant ( χ 2 = 34.61, P < 0.0005).
This relationship was also highly significant ( χ 2 = 34.61, P < 0.0005).
For drinking variables at baseline, there was no significant difference between these groups for PDA (included, mean = 28.0; excluded, mean = 29.5; t = 0.74, P = 0.46) but the difference for DDD approached significance (included, mean = 23.7; excluded, mean = 25.7; t = 1.83, P = 0.068).