Table 2.

The results of linear and multiple regression analyses on factors associated with postoperative subjective happiness (SHS).

	Time after LASIK
	1 m		3 m		6 m		DeltaSHS A
Independent Variables	β	P	β	P	β	P	β	P
Age	0.123	0.026	0.024	0.750	0.008	0.929	−0.166	0.051
	0.124	0.024 *	0.020	0.791	0.017	0.847	−0.176	0.041 *
Sex	−0.043	0.437	0.071	0.349	−0.125	0.178	0.041	0.629
	−0.047	0.391	0.070	0.359	−0.126	0.176	0.068	0.427
Preoperative SHS	0.749	<0.001 *	0.795	<0.001 *	0.460	<0.001 *	−0.217	0.010 *
	0.751	<0.001 *	0.706	<0.001 *	0.477	<0.001 *	−0.188	0.029 *
SHS at 1 m	−	−	0.795	<0.001 *	0.555	<0.001 *	−0.209	0.014 *
	−	−	0.771	<0.001 *	0.562	<0.001 *	−0.199	0.018 *
Satisfaction	−0.200	<0.001 *	−0.087	0.278	−0.234	0.011	−0.093	0.277
	−0.249	<0.001 *	−0.104	0.198	−0.242	0.001 *	0.032	0.722
Preoperative UDVA	−0.018	0.745	−0.188	0.013 *	0.104	0.264	0.067	0.428
	0.012	0.825	−0.196	0.010 *	0.119	0.208	0.031	0.714
Postoperative UDVA	−0.078	0.156	0.999	0.996	−0.121	0.191	−0.032	0.702
	−0.159	0.008 *	0.001	0.989	−0.142	0.141	−0.195	0.021 *
Preoperative UNVA	−0.059	0.292	0.100	0.193	−0.109	0.249	−0.092	0.289
	0.060	0.278	−0.118	0.128	0.085	0.380	0.029	0.741
Postoperative UNVA	−0.159	0.177	0.013	0.866	−0.241	0.266	0.197	0.242
	0.300	0.092	−0.003	0.978	0.386	0.189	0.170	0.504
Near add power	−0.097	0.477	−0.318	0.055	−0.003	0.991	−0.298	0.189
	−0.251	0.164	−0.394	0.106	−0.335	0.347	−0.322	0.229
Isometropia	0.005	0.928	0.004	0.957	−0.109	0.239	−0.013	0.876
	0.028	0.607	0.006	0.936	−0.108	0.253	−0.044	0.606

Dependent variable: postoperative SHS at each visit. * p < 0.05. The results of linear regression, upper rows; the results of multiple regression adjusted for age and sex, lower rows. men = 1, women = 0; isometropia = 1, anisometropia = 0. Delta SHS ^A = (value at final visit) − (value at 1 month). m, month(s); UDVA, uncorrected distance visual acuity; UNVA, uncorrected near visual acuity.