Research Article
Prepregnancy Physical Activity in relation to Offspring Birth Weight: A Prospective Population-Based Study in Norway—The HUNT Study
Table 1
Characteristics of the study population (N = 2,026) according to total leisure time physical exercise.
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Characteristic | Total physical exercise levela | | No activity | Low | Medium | High |
| | No participants (% of total) | 147 (7.3) | 647 (31.9) | 641 (31.6) | 591 (29.2) | | Mean age at baseline, y | 26.8 | 27.2 | 26.7 | 26.6 | | Mean body mass index, kg/m² | 22.4 | 22.3 | 22.5 | 22.4 | | Parity (% primiparous) | 20.4 | 28.2 | 28.5 | 40.6 | | Smoking (% current smoking) | 53.1 | 44.0 | 38.8 | 31.3 | | Education (% college/university) | 8.1 | 16.1 | 20.6 | 25.4 | | Alcohol (% not drinking last 2 weeks) | 49.7 | 45.7 | 46.0 | 43.1 | | Marital status (% married) | 53.1 | 55.6 | 49.5 | 46.7 |
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aBased on a summary score of frequency, duration, and intensity of exercise.
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