a possible trendp=0.5
When compared to the whole DMD population, a positive interaction coefficient 0.7 (95% CI −1.9 to 3.3; raw NSAA:0.5 (95% CI −0.7 to 1.7)) suggested a possible trend for a slower decline in boys with duplications (p=0.5), and a trend towards a more rapid decline in boys with point mutations (interaction coefficient=−1.5; 95% CI −4.1 to 1.1; p=0.2; raw NSAA:−0.3 95% CI −1.5 to 1.0); however, neither of these differences was significant.