Table 3.

Seasonal Variation of Diagnostic Clusters for 3 Different Seasonal Models for Summer

Reallocation of Months Within Seasons,PValues
DiagnosisSummer =June, July, AugSummer =July, Aug, SeptSummer =May, June, July
Note: Original definition of summer = June, July, August.
Aug = August; URI = Upper respiratory tract infection; COPD = chronic obstructive pulmonary disease.
Sensitivity analysis on seasonality:
* Robust seasonality.
† Low seasonality. ‡ Moderate seasonality.
Hypertension*<.001*.012.010
URI*<.001*<.001*<.001*
Physical examination.077.028.026
Diabetes.013.014.124
Sinusitis*<.001*<.001*<.001*
Bronchitis*<.001*<.001*<.001*
Degenerative joint disease.308.744.443
Asthma*<.001*<.001*<.001*
Otitis*<.001*<.001*<.001*
Depression.422.954.119
Hypercholesterolemia.015<.001*.224
Rhinitis<.001*<.001*.031
Back pain.015.010.001*
Obesity.001*<.001*.022
Pregnancy<.001*.001*.033
Urinary tract infection.545.728.892
Headache.329.491.133
COPD.534.840.673
Neck pain.032<.001*.013
Contact dermatitis.741.802.896
Anxiety.724.270.642
Hypothyroidism.816.398.089
Coronary artery disease*<.001*<.001*001*