To examine young Australian women’s weight expectations, motivations for weight change and perceived factors influencing weight management, and to determine if these factors differ by age, BMI, marital status, education or income.

Cross-sectional study. An online survey captured respondents’ weight, height, ideal weight, main reasons for wanting to change their weight and challenges to managing their weight.

Online survey in Australia.

Six hundred and twenty women aged 18–30 years currently living in Australia who completed the survey between 31 July and 30 September 2012.

Approximately half of participants (53·1 %) were a healthy weight, 25·2 % overweight and 19·0 % obese. Women unhappy at their current weight (78·1 %) reported a median ideal weight −12·3 % less than their current weight. The key motivators for weight change were to improve health (24·4 %, ranked 1), feel better in oneself (22·3 %) and improve self-confidence (21·5 %). Lack of motivation, time constraints because of job commitments and cost were the most commonly reported factors influencing weight management. Age, BMI, marital status, education and income were found to influence weight expectations, motivations for weight change and/or factors perceived to influence weight management.

The findings suggest potential implications for weight management interventions and public health messaging targeting young women, to improve long-term health outcomes. Strategies that promote the health benefits of physical activity and healthy eating, feeling better about oneself and improved self-confidence, and address the main factors influencing weight management including lack of motivation, time constraints and cost, may be used to engage this target group.

To investigate the association between the weight status of first–year female students (FYFS) and various weight management–related characteristics to identify possible components of a weight management programme for students.

Cross‐sectional study.

Female residences at a South African university.

A total of 360 FYFS.

Mean (± standard deviation (SD)) body mass index (BMI) of the FYFS was 21.8 ± 2.6 kg m−2, with 7.2% being underweight, 81.9% normal‐weight, 10.0% overweight and 0.8% obese. Underweight, normal–eight and overweight students differed with regard to their perception of their weight (P < 0.001), weight goals (P < 0.001) and previous weight–loss practices (P < 0.001). Mean ± SD score on the 26-item Eating Attitudes Test (EAT–26) was 8.5 ± 9.0 with 8.4% classified as high scorers. Mean ± SD score on the 34-item Body Shape Questionnaire (BSQ) was 87.7 ± 32.2, with 76.1% classified as low, 11.9% as medium and 11.9% as high scorers. The self-concept questionnaire indicated that 36.7% had a high, 43.9% a medium and 19.4% a low self-concept. Higher BMI correlated with a higher BSQ score (P < 0.001), a lower self-concept (P = 0.029) and a higher EAT-26 score (P < 0.001). Smoking was prevalent amongst 13.1% of students, and 51.2% used vitamin and/or mineral supplements. Students who quitted smoking had higher (P = 0.006) BMI (22.7 ± 2.9 kg m-2) than those who never smoked before (21.6 ± 2.5 kg m−2). Normal-weight students were more physically active than underweight or overweight students (P = 0.038).

The specific weight management-related needs of FYFS include information about supplement use, smoking, realistic weight goals, safe and sound weight-loss methods, weight cycling, body-shape perceptions, eating attitudes and behaviours, self-concept and physical activity. Interventions aimed at correcting these problems should target all students, regardless of their BMI.