Table 3.

Monthly symptomatic P. falciparum incidence rates across sociodemographic factors in jhum cultivators and non-jhum cultivators ≥ 15 years old

Demographic factors	Jhum cultivators				Non-jhum cultivators
	N	Cases	Incidence*	P value	N	Cases	Incidence*	P value
Union
Rajbila	1,169	61	1.88	< 0.001	5,378	85	0.57	0.605
Kuhalong	1,354	28	0.75		6,172	90	0.53
Sex
Male	1,240	58	1.61	0.011	5,627	105	0.67	0.003
Female	1,194	31	0.91		5,923	70	0.43
Ethnicity
Bengali (non-tribal)	3	0	0	−†	2,626	30	0.41	< 0.001
Marma	1,856	68	1.27		6,803	107	0.56
Tanchangya	180	7	1.35		1,072	15	0.50
Khyang	127	0	0		487	1	0.07
Chakma	174	5	1.03		294	12	1.41
Tripura	87	3	1.25		83	5	2.03
Other tribal	21	6	10.22		26	5	5.87
Education level, years
0–2	1,904	64	1.21	0.741	6,423	101	0.57	0.094
3–5	360	14	1.39		2,221	41	0.66
≥ 6	259	11	1.53		2,906	33	0.40
Bed net use
Yes	2,087	69	2.24	0.009	9,464	142	0.53	0.381
No	302	20	1.15		1,042	12	0.41
Total	2,523	89	1.27		11,550	175	0.55

^*Incidence is reported as the number of Rapid Diagnostic Test (RDT)- or blood smear-positive symptomatic P. falciparum cases per 1,000 per month.

^†Could not calculate a χ² statistic, because there were no cases in the reference group (non-tribal Bengalis).