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TABLE 1

Differences Between Children Grouped by Whether They Had Resolution of OSA in the CHAT As Determined by Follow-up Polysomnography

CharacteristicWith Resolution (n = 244)Without Resolution (n = 154)Pa
Age, y, mean (95% CI) 6.5 (6.3 to 6.6) 6.7 (6.5 to 6.9) .08 
Male sex, n (%) 114 (47) 80 (52) .36 
Race, n (%)   .05 
 White 101 (41) 43 (28)  
 African American 115 (47) 97 (63)  
 Other 28 (12) 14 (9)  
Hispanic ethnicity, n (%) 19 (8) 12 (8) .99 
BMI percentile score, mean (95% CI) 66.3 (62.5 to 70.3) 76.2 (71.5 to 80.9) <.001 
Wt class, n (%)    
 Obeseb 62 (25) 72 (47) <.001 
 Failure to thrive 10 (4) 4 (3) — 
Maternal education less than high school, n (%) 70 (29) 55 (36) .35 
Annual household income <$30 000, n (%) 91 (37) 64 (42) .17 
AHI score at baseline, events per h, mean (95% CI) 5.8 (5.1 to 6.4) 8.3 (7.4 to 9.2) <.001 
AHI score at follow-up, events per h, mean (95% CI) 0.8 (0.7 to 0.8) 8.7 (6.9 to 10.5) <.001 
Adenotonsillectomy, n (%) 154 (63) 40 (26) <.001 
Follow-up AHI ≥2, n (%) 0 (0) 148 (96) — 
Follow-up AHI ≥5, n (%) 0 (0) 77 (50) — 
Follow-up AHI ≥10, n (%) 0 (0) 34 (22) — 
CharacteristicWith Resolution (n = 244)Without Resolution (n = 154)Pa
Age, y, mean (95% CI) 6.5 (6.3 to 6.6) 6.7 (6.5 to 6.9) .08 
Male sex, n (%) 114 (47) 80 (52) .36 
Race, n (%)   .05 
 White 101 (41) 43 (28)  
 African American 115 (47) 97 (63)  
 Other 28 (12) 14 (9)  
Hispanic ethnicity, n (%) 19 (8) 12 (8) .99 
BMI percentile score, mean (95% CI) 66.3 (62.5 to 70.3) 76.2 (71.5 to 80.9) <.001 
Wt class, n (%)    
 Obeseb 62 (25) 72 (47) <.001 
 Failure to thrive 10 (4) 4 (3) — 
Maternal education less than high school, n (%) 70 (29) 55 (36) .35 
Annual household income <$30 000, n (%) 91 (37) 64 (42) .17 
AHI score at baseline, events per h, mean (95% CI) 5.8 (5.1 to 6.4) 8.3 (7.4 to 9.2) <.001 
AHI score at follow-up, events per h, mean (95% CI) 0.8 (0.7 to 0.8) 8.7 (6.9 to 10.5) <.001 
Adenotonsillectomy, n (%) 154 (63) 40 (26) <.001 
Follow-up AHI ≥2, n (%) 0 (0) 148 (96) — 
Follow-up AHI ≥5, n (%) 0 (0) 77 (50) — 
Follow-up AHI ≥10, n (%) 0 (0) 34 (22) — 

All categorical variables are shown by n (%) and continuous variables by mean (95% CIs). Resolution of OSA was defined by follow-up polysomnography revealing an AHI <2 and an OAI <1. —, not applicable.

a

P < .05 indicates statistical significance.

b

Children with a BMI ≥95th percentile were categorized as obese. Children with a BMI in the fifth percentile or lower were classified as failure to thrive. The percentile designation was obtained from the Centers for Disease Control growth charts for children aged 2 to 20 y.

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