Table 3.

Multivariable analysis and risk scoring system for ritodrine-induced adverse events.

Parameters	Crude Odds Ratio	Adjusted Odds Ratio	Score
Age ≥ 35 years	1.43 (0.59–3.49)	1.90 (0.69–5.27)
Gestational age < 30 weeks	1.41 (0.71–2.80)	1.66 (0.79–3.49)
Height < 160 cm	2.54 (1.25–5.17) *	2.41 (1.13–5.12) *	0, 1 a
GNAS rs7121	0.60 (0.36–0.99) *	1.00 (0.51–1.97)
GNAS rs3730168	2.18 (1.26–3.79) **	2.10 (1.03–4.30) *	0, 1, 2 b
RGS2 rs1152746	2.39 (1.05–5.41) *	2.63 (1.07–6.49) *	0, 1, 2 b

Logistic regression analysis was carried out with variables of age, gestational age, height, GNAS rs7121, GNAS rs3730168, and RGS2 rs1152746. * p-value < 0.05, ** p-value < 0.01. ^a Height < 160 cm was assigned to score 1 (0: ≥160 cm; 1: <160 cm). ^b Number of the variant allele was assigned to each score (0: GG, 1: GA, 2: AA for rs3730168; 0: CC, 1: CT, 2: TT for rs1152746).