Appendix Table 4. Results of 2-Part Regression Models by Inpatient/Outpatient and MSD/LSD

	Coefficient	Standard Error	Z	P>|z|	95% Confidence Interval
MSD inpatient
Probability of any costs
Rotavirus	0.33	0.23	1.42	0.15	–0.12–0.78
Cryptosporidium	0.42	0.28	1.50	0.13	–0.13–0.96
ST-producing ETEC	0.16	0.33	0.49	0.63	–0.49–0.81
Shigella	0.42	0.35	1.20	0.23	–0.26–1.10
Campylobacter jejuni	–0.13	0.54	–0.25	0.81	–1.19–0.92
Norovirus_GII	0.42	0.38	1.10	0.27	–0.33–1.17
Vibrio cholerae O1	–1.71	0.60	–2.85	0.00	–2.89– –0.54
Gender (female)	–0.27	0.19	–1.44	0.15	–0.64–0.10
Age group (ref: infant)
Toddler	–0.17	0.21	–0.81	0.42	–0.59–0.25
Child	–0.66	0.27	–2.41	0.02	–1.19– –0.12
Country
Mali	0.00	(empty)	0.00	0.00	0.00–0.00
Mozambique	2.67	0.26	10.42	0.00	2.16–3.17
Kenya	2.73	0.37	7.36	0.00	2.00–3.45
India	0.00	(empty)	0.00	0.00	0.00–0.00
Bangladesh	0.00	(empty)	0.00	0.00	0.00–0.00
Pakistan	1.69	0.89	1.90	0.06	–0.05–3.44
Constant	0.57	0.21	2.68	0.01	0.15–0.99
Expected costs given any costs
Rotavirus	0.01	0.05	0.16	0.87	–0.08–0.10
Cryptosporidium	0.03	0.06	0.47	0.64	–0.09–0.14
ST-producing ETEC	–0.04	0.08	–0.54	0.59	–0.20–0.11
Shigella	–0.03	0.06	–0.44	0.66	–0.15–0.10
Campylobacter jejuni	–0.11	0.09	–1.32	0.19	–0.28–0.05
Norovirus_GII	0.12	0.09	1.28	0.20	–0.06–0.31
Vibrio cholerae O1	–0.11	0.13	–0.87	0.38	–0.36–0.14
Gender (female)	0.07	0.04	1.78	0.07	–0.01–0.15
Age group (ref: infant)
Toddler	–0.11	0.05	–2.40	0.02	–0.20– –0.02
Child	–0.09	0.06	–1.55	0.12	–0.21–0.02
Country
Mali	2.24	0.17	13.09	0.00	1.90–2.57
Mozambique	–0.34	0.07	–4.76	0.00	–0.48– –0.20
Kenya	0.72	0.09	8.28	0.00	0.55–0.89
India	0.19	0.07	2.64	0.01	0.05–0.34
Bangladesh	0.25	0.07	3.61	0.00	0.11–0.39
Pakistan	0.14	0.27	0.53	0.60	–0.39–0.67
Constant	2.78	0.07	39.80	0.00	2.64–2.92
MSD outpatient
Probability of any costs
Rotavirus	0.35	0.10	3.47	0.00	0.15–0.54
Cryptosporidium	–0.06	0.11	–0.49	0.63	–0.28–0.17
ST-producing ETEC	–0.10	0.12	–0.84	0.40	–0.33–0.13
Shigella	0.29	0.12	2.38	0.02	0.05–0.52
Campylobacter jejuni	–0.35	0.11	–3.26	0.00	–0.56– –0.14
Norovirus_GII	0.06	0.13	0.48	0.64	–0.19–0.32
Vibrio cholerae O1	0.80	0.21	3.88	0.00	0.40–1.21
Gender (female)	0.02	0.07	0.21	0.83	–0.13–0.16
Age group (ref: infant)
Toddler	–0.12	0.08	–1.42	0.16	–0.28–0.04
Child	–0.17	0.10	–1.71	0.09	–0.36–0.02
Country
Mali	8.22	1.00	8.20	0.00	6.26–10.19
Mozambique	2.50	0.21	11.70	0.00	2.08–2.91
Kenya	2.55	0.11	23.57	0.00	2.34–2.76
India	7.07	0.71	9.95	0.00	5.68–8.47
Bangladesh	0.00	(empty)	0.00	0.00	0.00–0.00
Pakistan	–0.03	0.09	–0.33	0.74	–0.20–0.14
Constant	–0.27	0.09	–2.89	0.00	–0.45– –0.09
Expected costs given any costs
Rotavirus	0.13	0.04	2.89	0.00	0.04–0.22
Cryptosporidium	0.07	0.05	1.46	0.14	–0.02–0.17
ST-producing ETEC	0.03	0.06	0.51	0.61	–0.09–0.15
Shigella	0.12	0.06	2.10	0.04	0.01–0.23
Campylobacter jejuni	–0.04	0.05	–0.81	0.42	–0.15–0.06
Norovirus_GII	–0.10	0.07	–1.42	0.16	–0.24–0.04
Vibrio cholerae O1	0.09	0.14	0.65	0.52	–0.19–0.37
Gender (female)	0.05	0.03	1.74	0.08	–0.01–0.11
Age group (ref: infant)
Toddler	–0.10	0.04	–2.70	0.01	–0.17– –0.03
Child	–0.18	0.04	–4.50	0.00	–0.26– –0.10
Country
Mali	0.78	0.07	10.85	0.00	0.64–0.92
Mozambique	–0.60	0.11	–5.56	0.00	–0.82– –0.39
Kenya	0.82	0.08	10.87	0.00	0.68–0.97
India	–0.31	0.07	–4.22	0.00	–0.46– –0.17
Bangladesh	–0.07	0.08	–0.83	0.41	–0.23–0.09
Pakistan	0.16	0.09	1.81	0.07	–0.01–0.33
Constant	2.05	0.07	28.27	0.00	1.91–2.19
LSD
Probability of any costs
Rotavirus	0.60	0.18	3.28	0.00	0.24–0.95
Cryptosporidium	–0.27	0.20	–1.36	0.17	–0.67–0.12
ST-producing ETEC	0.05	0.18	0.30	0.76	–0.30–0.41
Shigella	–0.78	0.35	–2.20	0.03	–1.47– –0.08
Campylobacter jejuni	–0.29	0.25	–1.15	0.25	–0.79–0.21
Norovirus_GII	0.08	0.24	0.34	0.73	–0.38–0.54
Vibrio cholerae O1	1.71	0.79	2.17	0.03	0.17–3.25
Gender (female)	0.02	0.12	0.15	0.88	–0.22–0.26
Age group (ref: infant)
Toddler	–0.36	0.14	–2.53	0.01	–0.64– –0.08
Child	–0.66	0.17	–3.94	0.00	–0.98– –0.33
Country
Mali	4.06	0.23	17.80	0.00	3.61–4.50
Mozambique	3.21	0.21	15.52	0.00	2.81–3.62
India	7.15	1.01	7.10	0.00	5.18–9.12
Bangladesh	0.00	(empty)	0.00	0.00	0.00–0.00
Pakistan	–0.36	0.15	–2.45	0.01	–0.65– –0.07
Constant	0.00	0.00	0.00	0.00	0.00–0.00
Expected costs given any costs
Rotavirus	0.54	0.13	4.22	0.00	0.29–0.80
Cryptosporidium	0.10	0.17	0.62	0.54	–0.22–0.43
ST-producing ETEC	0.00	0.16	0.02	0.99	–0.32–0.32
Shigella	0.80	0.32	2.50	0.01	0.17–1.43
Campylobacter jejuni	0.32	0.27	1.16	0.25	–0.22–0.85
Norovirus_GII	0.01	0.19	0.06	0.95	–0.36–0.38
Vibrio cholerae O1	0.46	0.72	0.63	0.53	–0.96–1.87
Gender (female)
Age group (ref: infant)	0.00	0.00	0.00	0.00	0.00–0.00
Toddler	0.02	0.11	0.22	0.83	–0.18–0.23
Child
Country	0.00	0.00	0.00	0.00	0.00–0.00
Mali	0.45	0.18	2.55	0.01	0.10–0.80
Mozambique	–0.38	0.19	–1.99	0.05	–0.75– –0.01
India	–0.23	0.18	–1.25	0.21	–0.58–0.13
Bangladesh	0.04	0.19	0.18	0.85	–0.34–0.41
Pakistan	0.63	0.26	2.38	0.02	0.11–1.14
Constant	1.49	0.17	8.69	0.00	1.15–1.82

Abbreviations: ETEC, enterotoxigenic Escherichia coli; LSD, less severe diarrhea; MSD, moderate to severe diarrhea; ST, heat-stable toxin.