Table 3.

Risk factors for change in serum TSH after ART (Maximum likelihood estimation from a multiple linear regression analysis)

Variable of interest	Estimate	Standard Error	T	P value
Age	0.02	0.02	1.06	0.29
BMI	−0.01	0.01	−0.85	0.39
Presence of anti-thyroid antibodies	−0.45	0.17	−2.63	0.01
Baseline AFC	0.01	0.01	1.39	0.17
Baseline serum FSH	−0.01	0.02	−0.72	0.47
Cause of infertility Anovulatory	−0.20	0.25	−0.81	0.42
Cause of infertility male factor/tubal/endometriosis	−0.35	0.14	−2.47	0.01
Protocol (long vs short)	−0.32	0.13	−2.57	0.01
Outcome SAB-ectopic vs positive	−0.12	0.23	−0.52	0.60
Outcome negative vs positive	0.09	0.15	0.56	0.58
Outcome No-HCG vs positive	0.04	0.28	0.16	0.88
Parity status	−0.14	0.18	−0.74	0.46