Cross-border malaria in Northern Brazil

Malaria Journal

Table 2 Characteristics of autochthonous and cross-border malaria cases, Brazil, 2016–18

Variable	Total autoch-thonous cases	Total cross-border cases	Χ² p-value	Cross-border cases Venezuela	Cross-border cases Guyana	Cross-border cases Other Countries	Χ² p-value
Sex			< 0.001				< 0.001
Female	245,245	6619		4435	1034	1150
Male	366,783	13,849		8875	2334	2640
Age group			< 0.001				< 0.001
Under 5	67,788	739		424	54	261
5 to 15	162,305	1239		696	58	485
16 to 24	116,944	4442		3013	656	773
25 to 40	146,951	9186		5827	1830	1529
41 to 64	102,175	639		3192	754	693
Over 65	15,865	223		158	15	50
Nationality			< 0.001				< 0.001
Brazil	611,966	13,467		7157	3331	2979
Venezuela	30	6157		6149	6	2
Guyana	10	32		3	29	–
Others	22	812		1	1	810
Occupation			< 0.001				< 0.001
Agriculture	137,227	1166		316	131	719
Domestic	59,161	738		459	67	212
Forestry	5713	154		57	15	82
Hunter/Fisherman	16,076	152		36	3	113
Miner	16,392	13,485		9789	2518	1178
Tourist	3137	161		112	26	23
Travelling	8506	454		296	48	110
Other	365,816	4158		2245	559	1354
Detection method			< 0.001				< 0.001
Active	153,133	911		230	145	536
Passive	457,235	19,520		13,051	3216	3253
Parasite species			< 0.001				< 0.001
P. falciparum	40,348	3349		2513	416	420
P. vivax	547,714	15,395		9576	2701	3118
Mixed/other	23,966	1724		1,221	250	253
State			< 0.001				< 0.001
Acre	110,081	182		2	–	180
Amapá	46,965	839		9	2	828
Amazonas	248,386	2111		496	107	1,508
Pará	129,519	587		194	203	190
Rondônia	30,527	207		6	11	190
Roraima	42,201	14,468		12,166	2257	45
Others	4349	2074		437	788	849
Type of cross-border			< 0.001				< 0.001
Border	246,471	9098		77	2523	77
Transnational	365,557	11,370		3290	1267	3290

ISSN: 1475-2875