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Table 2 Demographic and anthropometric characteristics of 112 lactating mothers

From: Reproducibility and relative validity of a semi-quantitative food frequency questionnaire for the Chinese lactating mothers

Characteristics Results
Age, y (\( \overline{X}\pm \mathrm{SD} \)) 29.4 ± 3.9
Height, cm (\( \overline{X}\pm \mathrm{SD} \)) 161.4 ± 4.9
Weight, kg (\( \overline{X}\pm \mathrm{SD} \)) 60.8 ± 8.0
BMI, kg/m2 (\( \overline{X}\pm \mathrm{SD} \)) 22.9 ± 4.1
 Underweight (n, %) 5 (4.5)
 Normal weight (n, %) 64 (57.1)
 Overweight (n, %) 38 (33.9)
 Obesity (n, %) 5 (4.5)
Education (n, %)
 Junior high school 5 (4.5)
 Senior high school 16 (14.3)
 Vocational-technical school 25 (22.3)
 University degree or above 66 (58.9)
Employment status (n, %)
 Employed 24 (21.4)
 Unemployed 88 (78.6)
Delivery way (n, %)
 Spontaneous labor 70 (62.5)
 Others 42 (37.5)
Parity (n, %)
 Once 73 (65.2)
 Twice or more 39 (34.8)