Trial | Random | Blocked | Self-directed (P1–P10) and matched control (P1–P9) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 | |||
1 | V | S | S | S | S | S | S | S | S | S | S | S |
2 | S | S | S | S | S | S | S | S | S | S | S | S |
3 | H | S | S | S | S | S | S | S | S | S | S | S |
4 | H | S | S | S | S | S | S | S | S | S | S | S |
5 | V | S | V | S | S | S | S | S | S | S | S | V |
6 | S | V | V | V | V | V | V | V | V | V | V | V |
7 | V | V | V | V | V | V | V | V | V | V | V | V |
8 | H | V | V | V | V | V | V | V | V | V | H | V |
9 | S | V | H | V | V | V | V | V | V | V | H | H |
10 | V | V | H | V | V | V | V | V | V | V | V | H |
11 | H | H | H | H | H | H | H | H | H | H | V | H |
12 | S | H | H | H | H | H | H | H | H | H | V | H |
13 | V | H | S | H | H | H | H | H | H | H | H | S |
14 | H | H | V | H | H | H | H | H | H | H | H | V |
15 | S | H | H | H | H | H | H | H | H | H | H | H |
H = horizontal mattress suture; S = simple interrupted suture; V = vertical mattress suture.