Table 2. Results From Nonlinear Regression Modeling of Media Items and Weekly Referrals for Each Gender Service.

Referral wk	Gender service
	RCHGS		GIDS
	β̂ (95% CI)a	P value	β̂ (95% CI)a	P value
1b	0.07 (−0.01 to 0.15)	.09	0.16 (0.03 to 0.29)	.01
2c	0.12 (0.04 to 0.20)	.003	0.08 (−0.05 to 0.21)	.22
3d	0.03 (−0.05 to 0.11)	.43	0.10 (−0.03 to 0.23)	.14

Abbreviations: GIDS, Gender Identity Development Service; RCHGS, Royal Children’s Hospital Gender Service.

^aAdjusted for time, which showed a significant association with referrals in each model.

^bReferral in week 1 = β₀ + β₁ × media items in week 1 + β₂ × time.

^cReferral in week 2 = β₀ + β₁ × media items in week 1 + β₂ × time.

^dReferral in week 3 = β₀ + β₁ × media items in week 1 + β₂ × time.