Diversity of House Dust Mite Species in Xishuangbanna Dai, a Tropical Rainforest Region in Southwest China

Table 2

Comparisons of the mite density in case homes versus control homes.

Group (number of samples)	Mite density, number of samples (%)
	Low^a	Medium^b	High^c
Case ()	110 (57.3%)	59 (30.7%)	23 (12.0%)
Control ()	21 (51.2%)	12 (29.3%)	8 (19.5%)

≤100 mites/g dust. ^b100–500 mites/g dust. ^c>500 mites/g dust.
Note: the value of row mean score differ test was 1.2184 and the value was 0.2697, which indicated that there were no differences in the mite densities between case and control homes.