Relationship between early menarche, obesity, and disordered eating behaviors: a school-based cross-sectional survey in Northern Saudi Arabia

Abstract

Background Obesity and disordered eating (DE) behaviors are serious health concerns, regularly observed among female adolescents, which could progress to adverse psychological and nutritional sequels.

Aim The aim of this study was to determine the prevalence of obesity and the self-reported DE behaviors among high school female students and to evaluate their self-perception of body image, peer pressures, and need for dietary consultation.

Methods This is a school-based cross-sectional study conducted in 2018. Self-administered surveys and anthropometric measurements were obtained from adolescent females, randomly selected from eight schools in northern Saudi Arabia. Sample characteristics were age, menarche, and DE behaviors (binge eating, self-induced vomiting, and usage of laxatives). Body mass index was converted to percentiles using the age-to-gender scale. Self-perception of body image, perceived peer pressures, and the Eating Attitude Test-26 (EAT-26) were scored, summated, and then presented in percentage mean scores (PMSs) and mean scores (MSs).

Results Sample comprised 399 participants. One hundred twenty-eight (32.1%) participants reported early age of menarche (≤12 years). Sixty-five (16.3%) participants reported the prevalence of overweight/obesity, 123 (30.8%) participants reported binge eating, 28 (7.0%) participants reported self-induced vomiting, and 21 (5.3%) participants reported usage of laxatives. The PMS of self-perception of body weight and peer pressure was 68.7±27.1 and 41.9±23.5, respectively. One hundred ninety-two (48.1%) participants needed professional dietary help. Students with early age of menarche were 1.7 times more likely to be overweight/obese (adjusted [adj] P=0.018) compared to others. Overweight/obese participants had significantly poorer self-perception of body image (PMS =47.4±25.0) and higher perceived peer pressure (PMS =49.5±23.1) compared to underweight/normal weight students (PMS =72.8±25.6 [P<0.001] and PMS =40.5±23.3 [P=0.005], respectively). Participants with early age of menarche complained of higher perceived peer pressure compared to others (P=0.045). Participants with DE behaviors had higher peer pressure (PMS =46.8±23.5) and higher scores on E-26 (MS =22.2±11.4) compared to their counter groups (P=0.002 and 0.016, respectively).

Conclusion The high rate of overweight/obesity and DE behaviors among female adolescents is alarming. Special consideration should be made for those with early menarche who were more prone to overweight/obesity.