Table 5.

Percentage of respondents reporting any history of respiratory disease, external parasites, or gastrointestinal disease following an agility trial.

First digit of zip code	States∧	Number (%) of respondents reporting disease	Adjusted residual
Respiratory disease (p = 0.02)
0	CT, MA, ME, NH, NJ, PR, RI, VT	42 (29.6%)	1.00
1	DE, NY, PA	27 (30.0%)	0.87
2	DC, MD, NC, SC, VA, WV	24 (21.1%)	−1.28
3	AL, FL, GA, MS, TN	18 (17.5%)	−2.08*
4	IN, KY, MI, OH	41 (33.9%)	2.05*
5	IA, MN, MT, ND, SD, WI	34 (23.6%)	−0.72
6	IL, KS, MO, NE	42 (32.8%)	1.82
7	AR, LA, OK, TX	21 (25.9%)	0.04
8	AZ, CO, ID, NM, NV, UT, WY	35 (31.3%)	1.30
9	AK, CA, HI, OR, WA	61 (21.3%)	−2.11*
External parasites (p = 0.001)
0	CT, MA, ME, NH, NJ, PR, RI, VT	11 (7.8%)	0.51
1	DE, NY, PA	5 (5.6%)	−0.46
2	DC, MD, NC, SC, VA, WV	3 (2.6%)	−1.83
3	AL, FL, GA, MS, TN	11 (10.7%)	1.67
4	IN, KY, MI, OH	2 (1.7%)	−2.34*
5	IA, MN, MT, ND, SD, WI	4 (2.8%)	−2.00*
6	IL, KS, MO, NE	5 (3.9%)	−1.34
7	AR, LA, OK, TX	11 (13.4%)	2.54*
8	AZ, CO, ID, NM, NV, UT, WY	7 (6.3%)	−0.21
9	AK, CA, HI, OR, WA	30 (10.5%)	2.84*
Gastrointestinal diseases (p = 0.2)
0	CT, MA, ME, NH, NJ, PR, RI, VT	25 (17.6%)	2.09*
1	DE, NY, PA	15 (16.7%)	1.35
2	DC, MD, NC, SC, VA, WV	12 (10.5%)	−0.56
3	AL, FL, GA, MS, TN	13 (12.6%)	0.14
4	IN, KY, MI, OH	16 (13.2%)	0.37
5	IA, MN, MT, ND, SD, WI	13 (9.0%)	−1.23
6	IL, KS, MO, NE	13 (10.2%)	−0.74
7	AR, LA, OK, TX	15 (18.5%)	1.80
8	AZ, CO, ID, NM, NV, UT, WY	10 (8.9%)	−1.10
9	AK, CA, HI, OR, WA	29 (10.1%)	−1.21

P-value from the chi square test of any difference by region as well as the adjusted residuals are also shown. Residuals >2 in absolute value are starred (*) indicating greater differences from the overall average. ^∧States included in each zip code area are indicated by their postal code; state names and names of US territories and armed forces in each zip code area are indicated in Table 1.