Investigation of the frequency of take-out meal consumption, overweight, and obesity among college students in Shanxi Province
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摘要:
目的 了解山西省大学生外卖点餐现状及其与超重肥胖的关系，为促进大学生健康饮食和预防肥胖带来的患病风险提供参考建议。 方法 通过多阶段随机抽样的方法，对山西省大学城内的山西大学、山西理工大学、山西医科大学、山西师范大学、山西传媒学院5所高校的1 631名大学生进行问卷调查，采用有序Logistic回归分析影响大学生外卖点餐频率的影响因素，并采用二元Logistic回归分析大学生超重肥胖的影响因素。 结果 1 456名大学生有点外卖经历，性别、月均生活费、年级和专业是影响大学生外卖点餐频率的影响因素(χ2值分别为72.26，242.89，351.52，222.35，P值均 < 0.01)。大学生超重肥胖率为12.3%，其中男生为19.2%，女生为6.6%。二元Logistic回归分析结果显示，在控制性别、月均生活费、年级、专业、常住地后，大学生每周外卖点餐频率越高，超重肥胖率越高(P值均 < 0.05)。 结论 大学生外卖点餐行为比较普遍，控制外卖点餐频率有助于降低超重肥胖的发生。 Abstract:Objective This study investigated the factors influencing, take-out meal consumption among college students in Shanxi Province and explored the relationship between the frequency of take-out meal consumption and BMI. Methods A total of 1 631 college students from five universities in Shanxi Province were studied by means of a questionnaire and multi-stage random sampling. Logistic regression was used to analyze the factors influencing college students' take-out meal consumption. The factors influencing overweight and obesity among college students were analyzed with binary Logistic regression. Results A total of 1 456 college students had some take-out meal consumption. Gender average monthly cost of living, grade, and major were the factors influencing the frequency of college students' take-out meal consumption(χ2=72.26, 242.89, 351.52, 222.35, P < 0.01). The overall overweight and obesity rate among the college students were 12.3%, 19.2% in male students, and 6.6% in female students. After controlling for gender, binary Logistic regression showed that monthly cost of living, grade, major, and permanent residence influenced the frequency of college students' weekly consumption of out-of-home meals, and this led to a higher the rate of overweight and obesity(P < 0.05). Conclusion Take-out meal consumption is relatively common among college students, and controlling its frequency could help to reduce the occurrence of overweight and obesity. -
Key words:
- Food habits /
- Overweight /
- Obesity /
- Regression analysis /
- Students
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表 1 不同人口统计学特征大学生每周外卖就餐频率分布
Table 1. College students' weekly frequency of take-out meal under different demographic characteristics
人口学指标 选项 人数 0次 1~3次 4~6次 ≥7次 Z值 P值 性别 男 734 52(7.1) 432(58.9) 154(21.0) 96(13.1) 72.26 ＜0.01 女 897 123(13.7) 511(57.0) 234(26.1) 29(3.2) 专业 医科 310 42(13.5) 128(41.3) 74(23.9) 66(21.3) 222.35 ＜0.01 理工科 326 16(4.9) 174(53.4) 101(31.0) 35(10.7) 文科 607 38(6.3) 389(64.1) 159(26.2) 21(3.5) 艺术 233 79(20.4) 252(64.9) 54(13.9) 3(0.8) 年级 大一 439 111(25.3) 283(64.5) 45(10.3) 0 351.52 ＜0.01 大二 487 38(7.8) 316(64.9) 89(18.3) 44(9.0) 大三 422 20(4.7) 274(64.9) 102(24.2) 26(6.2) 大四及以上 283 6(2.1) 70(24.7) 152(53.7) 55(19.4) 月均生活 ＜500 159 6(25.0) 12(50.0) 4(16.7) 2(8.3) 242.89 ＜0.01 费/元 501~1 000 403 23(10.8) 168(79.2) 2(0.9) 19(9.0) 1 001~1 500 340 128(19.2) 363(54.3) 151(22.6) 26(3.9) 1 501~2 000 383 13(3.4) 136(35.5) 208(54.3) 26(6.8) ＞2 000 344 5(1.5) 264(76.7) 23(6.7) 52(15.1) 常住地 农村 749 121(16.2) 444(59.3) 136(18.2) 48(6.4) 59.82 ＜0.01 城镇 882 54(6.1) 499(56.6) 252(28.6) 77(8.7) 注： ()内数字为构成比/%。 
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表 2 大学生每周外卖就餐影响因素的相关有序Logistic回归分析(n=1 631)
Table 2. Orderly Logistic regression of influencing factors of college students' weekly take-out meal(n=1 631)
自变量 选项 β值 标准误 Wald χ2值 P值 OR值(OR值95%CI) 性别 女 1.00 男 0.42 0.11 15.41 ＜0.01 1.52(1.23~3.43) 月均生活 ＜500 0.12 0.46 0.07 0.80 1.12(0.46~1.58) 费/元 501~1 000 0.31 0.20 2.43 0.12 1.37(0.92~2.52) 1001~1 500 0.01 0.15 0.00 0.97 1.01(0.75~2.12) 1 501~2 000 1.67 0.16 107.74 ＜0.01 5.32(3.88~48.46) ＞2 000 1.00 年级 大一 -3.05 0.18 278.60 ＜0.01 0.05(0.03~1.03) 大二 -1.90 0.16 140.76 ＜0.01 0.15(0.11~1.12) 大三 -1.66 0.16 104.12 ＜0.01 0.19(0.14~1.95) 大四及以上 1.00 常住地 城镇 0.36 0.12 9.40 0.00 1.43(1.14~3.12) 农村 1.00 专业 艺术 -1.54 0.17 83.14 ＜0.01 0.22(0.15~1.17) 理工科 -0.60 0.16 13.69 ＜0.01 0.55(0.40~1.49) 文科 -0.93 0.15 38.37 ＜0.01 0.40(0.30~1.34) 医科 1.00
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表 3 大学生超重肥胖影响因素的二元Logistic回归分析(n=1 631)
Table 3. Logistic regression of influencing factors of overweight and obesity in college students (n=1 631)
变量 选项 β值 P值 OR值(OR值95%CI) 性别 女 1.00 男 0.98 ＜0.01 2.66(1.79~3.96) 月均生活费 ＜500 0.72 0.31 2.06(0.52~8.23) /元 501~1 000 -0.58 0.13 0.56(0.26~1.19) 1 001~1 500 -0.70 0.01 0.50(0.29~0.86) 1 501~2 000 -1.24 ＜0.01 0.29(0.15~0.54) ＞2 000 1.00 年级 大一 -0.05 0.88 0.95(0.49~1.83) 大二 -0.16 0.58 0.86(0.49~1.48) 大三 -0.15 0.59 0.86(0.50~1.48) 大四及以上 1.00 常住地 城镇 0.23 0.30 1.25(0.82~1.92) 农村 1.00 专业 艺术 -0.41 0.16 0.66(0.37~1.18) 理工科 -0.62 0.02 0.54(0.32~0.90) 文科 -1.59 ＜0.01 0.21(0.12~0.35) 医科 1.00 外卖点餐 0 -4.06 ＜0.01 0.02(0.01~0.05) 频次 1~3 -3.67 ＜0.01 0.03(0.01~0.05) 4~6 -2.18 ＜0.01 0.11(0.06~0.20) ≥7 1.00
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