Research Article

The Relationship between High Risk for Obstructive Sleep Apnea and General and Central Obesity: Findings from a Sample of Chilean College Students

Table 4

Stratified analysis for the association of high OSA risk with overweight, general obesity, and central obesity, by sex, blood pressure, and self-rated health1.

Stratified variable
All participants 
WHO criteria
BMI: 25–29 versus <25
OR (95% CI)a
WHO criteria
BMI ≥30 versus <25
OR (95% CI)a
IDF criteriab
Central obesity versus no central obesity

Sex
 Male2800.56 (0.13, 2.47)7.23 (1.34, 38.94)4.66 (1.33, 16.39)
 Female6361.16 (0.34, 3.95)14.96 (5.40, 2.30)2.08 (0.90, 4.81)
Elevated blood pressurec
 No 3810.58 (0.12, 2.94)8.71 (2.26, 33.59)1.12 (0.39, 3.22)
 Yes5341.21 (0.36, 4.09)12.42 (4.23, 36.48)7.34 (2.38, 22.59)
Self-rated healthd
 Good6670.72 (0.25, 2.07)8.21 (3.52, 19.16)2.60 (1.28, 5.28)
 Poor923.01 (0.16, 57.86)144.82 (2.4, ∞)15.76 (0.93, 267.69)

BMI: body mass index; IDF: International Diabetes Federation; OR: odds ratio; 95% CI: 95% confidence interval.
aExcept for the stratified variables, the following variables were adjusted for age (continuous), sex, education, any physical activity participation, alcohol consumption, cigarette smoking, use of energy drinks, and self-rated health.
bCentral obesity was defined by the International Diabetes Federation (IDF) criteria for South Americans: WC ≥90 cm for men and WC ≥80 cm for women.
cElevated BP defined as systolic BP ≥120 mmHg or diastolic BP ≥80 mmHg.
dSelf-rated health (SRH) was evaluated by asking, “how would you say your health compares to others your age.” Poor SRH = worse than others my age. Good SRH = better or same as others my age.