. 2017 Mar 6;12(3):e0173123. doi: 10.1371/journal.pone.0173123

Table 2. Characteristics of Option B+ patients (Continuous variables).

	Option B+				p-value^ǁ
	n	% missing	median	IQR	p-value^ǁ
Age at ART start (years)	2166	0%	28.1	(23.9, 33.1)	<0.001
Body mass index	285	87%	22.5	(20.5, 25.9)	0.10
Hemoglobin	1055	51%	10.7	(9.8, 11.7)	<0.01
Time: HIV test to registration (days)	1614	25%	0	(0, 1)	0.03
Time: registration to ART start (days)	2166	0%	1	(0, 62)	<0.001
Time: HIV test to ART start (days)	1614	25%	5	(0, 120)	<0.001
Gestational age at HIV test (weeks)	850	61%	15.5	(7.0, 23.9)	<0.001
Gestational age at ART start (weeks)	968	55%	19.1	(13.0, 26.7)	<0.001
	Attrition^ǂ				p-value^ǁ
	n	% missing	median	IQR	p-value^ǁ
Age at ART start (years)	1023	0%	27.0	(22.8, 31.9)	<0.001
Body mass index	54	95%	21.6	(20.1, 24.2)	0.10
Hemoglobin	428	58%	10.6	(9.6, 11.6)	<0.01
Time: HIV test to registration (days)	758	26%	0	(0, 1)	0.03
Time: registration to ART start (days)	1023	0%	0	(0, 18)	<0.001
Time: HIV test to ART start (days)	758	26%	2	(0, 34)	<0.001
Gestational age at HIV test (weeks)	389	62%	17.7	(11.0, 25.1)	<0.001
Gestational age at ART start (weeks)	439	57%	21.0	(14.1, 28.7)	<0.001

^ǂ Attrition by MSPP definition

^ǁ Kruskal—Wallis equality of populations rank test (with ties) comparing variable values between attrition and non-attrition cases.