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Updated: Aug 22, 2026

Validation of a Psychosocial Intervention on Body Image in Older People: An Experimental Design
Published on: May 31, 2021
Abstract:
Using the status quo method on 917 girls aged 10-17 years in 1967, mean age at menarche was computed to be 13-09 +/- 0-08 years (SD 1-10). There was no difference in mean age at menarche between girls from different social groups defined by father's or mother's occupation. The menstrual periods evoked severe discomfort in 9 per cent of the individuals. These were on an average significantly younger at menarche than the other girls. The percentage of the girls feeling discomfort during the menstrual periods as well as its intensity increased with time since menarche.
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