Since this pattern is a 10-stitch repeat, there aren’t very many size alterations that can be made in terms of stitch numbers. Instead, I’ve used a more general approach to sizing based on different needle sizes.
For a woman’s small (you normally cast on 64 sts.): Size 1 needle, co 70
For a woman’s medium (you normally cast on 68 sts.): Size 1.5 needle, co 70
For a woman’s large (you normally cast on 72 sts.): Size 1 needle, co 80
For a man’s medium (you normally cast on 76 sts.): Size 1.5 needle, co 80
Needles: U.S. size 1/2.25 mm or 1.5/2.5 mm set of 5 double-pointed needles or circular(s)