Variables		Model 1	Model 2	Model 3
		ß (95%CI); P-value	ß (95%CI); P-value	ß (95%CI); P-value
Own smartphone	Yes	0.49 (-0.06, 1.05); 0.08	0.36 (-0.16, 0.89); 0.18	0.38 (-0.14, 0.91);0.150
Have internet on phone	Yes	1.21 (0.58, 1.82); 0.001	1.21(0.62, 1.81); 0.001	1.20 (0.61, 1.79); 0.001
Cadre	CHEW		Ref.	Ref.
	CHO		0.81 (0.03, 1.59);0.04	0.66 (-0.11, 1.43); 0.09
	Doctor		1.37 (0.72, 2.02);0.001	1.24 (0.54, 1.96); 0.001
	Nurse/midwife		0.54 (-0.11,1.19);0.11	0.51 (-0.15, 1.16); 0.13
	Others		-0.74 (-1.76, 0.29); 0.16	-0.68 (-1.73, 0.36); 0.19
Education	Low		Ref.	Ref.
	High		1.08 (0.44, 1.72); 0.001	0.99 (0.32, 1.65); 0.03
Health Center	Private		Ref.	Ref.
	Public		0.09 (-0.29, 0.49); 0.63	0.04 (-0.36, 0.45); 0.83
Sex	Female			Ref.
	Male			0.19 (-0.37, 0.74); 0.51
Age	Age			0.02 (0.01, 0.05); 0.02
Tribe	Yoruba			Ref.
	Igbo			-0.43 (-0.96, 0.08); 0.10
	Hausa			-1.82 (-4.39, 0.74); 0.16
	Others			-0.29 (-1.32, 0.72); 0.57
Marital status	Married			Ref.
	Not married			0.35 (-0.07, 0.78); 0.10
Intercept	Intercept	12.89 (12.3, 13.5); 0.001	10.41(9.1, 11.8);0.001	9.49 (7.94, 11.07); 0.001
	N-size	518	518	518
	R-square	0.065	0.156	0.177
	Adj. R-square	0.06	0.142	0.154
	RMSE	2.215	2.117	2.103