Table 1.

Sociodemographic and clinical characteristics of patients (n=521) screened for pandemic influenza A (H1N1) with an RIDT at four IHS facilities in the southwestern U.S., May–December 2009

^aTotal percentages may not equal 100 due to rounding.

^bOne person was missing information on age and gender; nine people were missing information on treatment status.

^cObesity only calculated for patients ≥2 years of age. Obesity defined as BMI ≥30 kilograms per meter squared for people aged >18 years and as ≥95th percentile of gender-specific BMI for age for people aged 2–18 years.

^dBased on assessment of the following conditions identified by the Advisory Committee on Immunization Practices as increasing the risk for influenza-related complications: pregnant, asthma, cancer, cardiovascular disease, chronic lung disease, chronic obstructive pulmonary disease, diabetes, immunosuppression, kidney disorder, liver disorder, or neurological or neurodevelopmental disorder.

^eThree of 88 people receiving early antiviral treatment were treated prior to receiving an RIDT and, thus, were not included in the analysis of the association between RIDT result and antiviral treatment.

RIDT = rapid influenza diagnostic test

IHS = Indian Health Service

BMI = body mass index