The solution group had a 3.3-fold increased likelihood ( 95 % CI 0.7-15 .1 ) of reaching an INR of < 2.0 at 48 h. Additionally , the increases in VK1 concentrations were similar ( tablets , 3.2 g L ( -1 ) ; solution , 3.4 g L ( -1 ) ; P = 0.99 ) after 24 h.