Table 2. Characteristics of relapse VL patients (N = 621) who did or did not have a record of previous treatment for primary VL.

		Relapse VL patients who had a record of treatment for primary VL (N = 166)	Relapse VL patients who did not have a record of treatment for primary VL (N = 455)	P-value*
Age group	<5 years	18.7%	20.9%	0.8
	5–19 years	47.6%	46.4%
	>19 years	33.7%	32.8%
Sex	Male	59.6%	57.1%	0.6
Treatment centre	Lankien	74.1%	51.9%	<0.001
	Other	25.9%	48.1%
Mean BMI (patients >19 years) (kg/m2)		(n = 51) 15.24	(n = 108) 16.14	0.01
Mean BMI-for-age Z-score (patients 5–19 years)		(n = 65) −3.34	(n = 149) −3.05	0.3
Mean WFH Z-score (patients <5 years)		(n = 31) −2.21	(n = 86) −2.53	0.4
Malnourished (Z-score<−3 or BMI<14kg/m2)		41.6%	34.9%	0.2
Missing height or weight data		11.5%	24.6%	<0.001
Mean hemoglobin (g/dl)		8.32	8.27	0.9
Missing hemoglobin data		54.2%	73.9%	<0.001
Mean duration of illness (months)		1.8	2.5	<0.001
Missing duration of illness data		5.4%	5.1%	0.9
Spleen size (Hackett Grade)	0	9.6%	11.2%	0.003
	1	7.2%	19.1%
	2	35.5%	34.7%
	≥3	42.2%	30.6%
	Missing	5.4%	4.4%
Walking status	Unassisted	31.9%	34.5%	1.0
	With a stick	40.4%	38.7%
	Assisted/Stretcher	10.2%	9.9%
	Missing	17.5%	16.9%
Drug used for VL relapse	SSG	19.3%	28.6%	0.1
	SSG/PM	72.3%	65.5%
	Other/CAPST	7.2%	5.1%
	Missing	0.9%	1.2%
Treatment outcome	Discharged	88.6%	87.7%	0.7
	Died	6.0%	5.3%
	Defaulted	5.4%	7.0%

*Student's t-test for difference between mean values, Chi-squared test for differences in proportions.