. 2018 Apr 18;126(4):047008. doi: 10.1289/EHP1943

Table 1.

Number of human Lyme disease (LD) cases in 2012–2013 and the proportion of respondents with higher social-behavioral index scores (lower LD risk) and higher ecological risk scores by health unit (Centre integré de santé et de services sociaux; CISSS) in the Montérégie region.

CISSS	No. of human LD cases				Human population^a (n)	Area ( ${km}^{2}$ )	Human population density^a (no./ ${km}^{2}$ )	Social/behavioral or ecological risk: proportion (percentage) of respondents with highest index scores (numerator) given the total number of surveyed participants at CISSS level (denominator)				Ecological risk (normalized value)	No. of field site locations
CISSS	2012	2013	2012–2013	No./100,000	Human population^a (n)	Area ( ${km}^{2}$ )	Human population density^a (no./ ${km}^{2}$ )	GPB^b	GK^c	GRP^d	PTD^e	PTD^f	No. of field site locations
Estrie	6	34	40	27	147,284	2,572	57	9/20 (45.0%)	7/36 (19.4%)	11/36 (30.6%)	7/36 (19.4%)	High (0.3)	46
Montérégie Ouest	5	9	14	3	410,921	3,748	10	11/48 (22.9%)	10/107 (9.3%)	38/107 (35.5%)	2/107 (1.9%)	Low ( $- 0.3$ )	49
Montérégie Est	2	8	10	3	372,299	3,519	106	15/70 (21.4%)	25/131 (19.1%)	37/131 (28.2%)	46/131 (35.1%)	High (0.1)	46
Montérégie Centre	0	5	5	1	509,187	1,443	353	7/43 (16.2%)	13/82 (15.8%)	21/82 (25.6%)	35/82 (42.7%)	High (0.3)	42

Note: GPB, global preventive behavior index; GK, global knowledge index; GRP, global risk perception index; PTD, predicted tick density index.

^{^a}

Human population size and density data per CISSS were derived from the human population from the 2011 census carried out by Statistics Canada (http://www12.statcan.gc.ca/census-recensement/index-eng.cfm).

^{^b}

Respondents with values of 2 (numerator).

^{^c}

Respondents with values of 3 or 4 (numerator).

^{^d,e}

Respondents with values at 75^e centile to 100^e centile (numerator).

^{^f}

Respondents from a region with a PTD normalized values from 0 to 1 were classified as higher risk (numerator).