Table 2.

Assessment of keratotic papules by nontreating dermatologists.

Grading	4 weeks of follow-up, n = 20		12 weeks of follow-up, n = 20
	Side A	Side B	Side A	Side B
0 (no improvement)	11	15	8	14
1 (1–25% improvement, minimal)	5	4	7	5
2 (26–50% improvement, moderate)	1	1	3	1
3 (51–75% improvement, good)	3	—	2	—
4 (>75% improvement, excellent)	—	—	—	—

Side A: fractional CO₂ laser treated side.

Side B: control side.