Table 3.

Relation between baseline M, baseline astigmatism, and development of myopia.

		All Subjects in Reduced Sample (n=777)		Only Subjects who never or rarely wore spectacles (n=631)
Baseline M	Baseline Astigmatism	Predicted Not Myopic Count	Predicted Myopic Count (%)	Predicted Not Myopic Count	Predicted Myopic Count (%)
Myopic (M <= −0.75)*	< 1.00 D	4	4 (50)	4	2 (33)
	1 to <3 D	1	12 (92)	0	8 (100)
	3 D or more	2	13 (87)	2	7 (78)
	Total	7	29 (81)	5	23 (74)
NHM (M > −0.75 and < +2.00)*	< 1.00 D	241	95 (28)	238	81 (25)
	1 to <3 D	115	79 (41)	90	47 (34)
	3 D or more	32	27 (46)	19	13 (41)
	Total	388	201 (34)	347	141 (29)
Hyperopic (M >= +2.00)**	< 1.00 D	31	0 (0)	29	0 (0)
	1 to <3 D	79	8 (9)	71	3 (4)
	3 D or more	29	5(15)	14	3 (18)
	Total	139	13 (9)	114	6 (5)
All *	< 1.00 D	276	99 (26)	271	83 (23)
	1 to <3 D	195	99 (34)	161	58 (26)
	3 D or more	63	45 (42)	35	23 (40)
	Total	534	243 (31)	467	164 (26)

^*Statistically significant difference (0.05 confidence level) in predicted final myopia status across levels of baseline astigmatism for both samples.

^**Statistically significant difference (95% confidence level) in predicted final myopia status across levels of baseline astigmatism for sample of subjects who never/rarely wore spectacles.