A case-control study on the association between egg consumption and risk of non-alcoholic fatty liver disease
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摘要:
目的 探讨鸡蛋摄入与非酒精性脂肪肝病(non-alcoholic fatty liver disease,NAFLD)患病风险的关系,为NAFLD的防控提供流行病学依据。 方法 收集2015年4月―2017年8月在南平市第一医院体检中心进行健康检查的体检者数据,以腹部彩超确诊的541名病例和按年龄性别随机抽取的541名对照进行病例对照研究。采用统一编制的结构式调查问卷及半定量食物频数问卷面对面调查研究对象的一般行为特征及膳食摄入情况。多因素非条件Logistic回归分析模型计算OR值及其95%CI,探索鸡蛋摄入与NAFLD患病风险的关系。 结果 与每天摄入鸡蛋相比,鸡蛋摄入频率为0患NAFLD的风险增高,其调整的OR值及其95% CI为1.86(95% CI:1.10~3.15)。敏感分析结果及亚组分析均显示从不摄入鸡蛋仍然是NAFLD的危险因素。 结论 从不摄入鸡蛋可能增高NAFLD的患病风险。 Abstract:Objective To explore the association between egg consumption and risk of non-alcoholic fatty liver disease(NAFLD). Methods We conducted a retrospective case-control study including 541 patients diagnosed with NAFLD and 541 controls matched by sex and age from the Affiliated Nanping First Hospital of Fujian Medical University in Nangping City. Information on dietary intake was collected using a semiquantitative food frequency questionnaire and egg consumption was calculated. Binary Logistic regression model was used to estimate OR and the 95% confidence interval (95% CI) was for the association between egg consumption and NAFLD risk. Results Compared with 7 times/week egg consumption, non-egg consumers was associated with higher risk of NAFLD, and the adjusted ORs and 95% CI 1.86 (95%CI:1.10-3.15). The sensitivity analyses and stratified analysis results showed that non-egg consumers was significantly associated with risk of developing NAFLD. Conclusions Non-egg consumption was significantly associated with higher risk of NAFLD, largely independent of other risk factors. -
Key words:
- Egg consumption /
- Non-alcoholic fatty liver disease /
- Case-control study
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表 1 病例对照的一般人口学特征[n(%)]
Table 1. General demographic characteristics of case and control[n(%)]
变量 病例组(n= 541) 对照组(n= 541) χ2/Z值 P值a 年龄[岁,(P25, P75)] 48 (39, 54) 48 (39, 54) -0.024 0.981 性别 <0.001 1.000 男性 369 (68.21) 369 (68.21) 女性 172 (31.79) 172 (31.79) 教育程度 3.636 0.162 文盲及小学 42 (7.76) 53 (9.80) 初中及高中 226 (41.78) 198 (36.60) 大专及以上 273 (50.46) 290 (53.60) 职业 5.786 0.055 脑力劳动者 157 (29.02) 150 (27.73) 体力劳动者 162 (29.94) 198 (36.60) 其他 222 (41.04) 193 (35.67) 收入(元/月) 1.280 0.527 < 2 000 33 (6.10) 36 (6.65) 2 000~ 160 (29.57) 175 (32.35) ≥3 000 348 (64.33) 330 (61.00) BMI (kg/m2) 214.823 < 0.001 <18.5 3 (0.55) 19 (3.51) 18.5~ 172 (31.80) 387 (71.54) 24.0~ 289 (53.42) 128 (23.66) ≥28.0 77 (14.23) 7 (1.29) 吸烟 0.179 0.672 是 136 (25.14) 130 (24.03) 否 405 (74.86) 411 (75.97) 饮酒 0.018 0.894 是 162 (29.94) 160 (29.57) 否 379 (70.06) 381 (70.43) 体育锻炼(h/周) 0.019 0.891 ≤3 145 (26.80) 143 (26.43) >3 396 (73.20) 398 (73.57) 慢性病史 13.582 < 0.001 是 238 (43.99) 179 (33.09) 否 303 (56.01) 362 (66.91) 收缩压[mmHg, (P25, P75)] 120 (132, 114) 118 (110, 126) -6.664 < 0.001 舒张压[mmHg, (P25, P75)] 82 (78, 90) 80 (74, 85) -6.490 < 0.001 TG[mmol/L, (P25, P75)] 1.79 (1.29, 2.53) 1.15 (0.87, 1.55) -13.714 < 0.001 TC[mmol/L, (P25, P75)] 5.15 (4.65, 5.77) 4.96 (4.51, 5.52) -2.961 0.003 HDL-C[mmol/L, (P25, P75)] 1.21 (1.06, 1.37) 1.35 (1.18, 1.48) -9.149 < 0.001 LDL-C[mmol/L, (P25, P75)] 3.20 (2.62, 3.74) 3.10 (2.68, 3.58) -0.933 0.531 ALT[IU/L, (P25, P75)] 26 (20, 38) 19 (14, 25) -11.78 < 0.001 SUA[μmol/L, (P25, P755)] 369.30 (302.74, 429.57) 340.10 (272.30, 385.24) -6.685 < 0.001 FPG[mmol/L, (P25, P75)] 5.34 (5.04, 5.85) 5.13 (4.90, 5.52) -6.551 < 0.001 膳食因素 能量[kcal, (P25, P75)]b 1 954.57 (1 631.26, 2 273.60) 1 882.49 (1 556.28, 2 210.98) -2.911 0.004 胆固醇[mg/d, (P25, P75)] 350.08 (241.24, 439.65) 325.62 (232.79, 435.17) -0.651 0.515 钠[mg/d, (P25, P75)] 818.39 (617.38, 1034.98) 742.27 (585.08, 992.16) -0.700 0.484 饱和脂肪酸[g/d, (P25, P75)] 22.35 (17.68, 30.88) 21.87 (16.46, 29.72) -0.753 0.452 不饱和脂肪酸[g/d, (P25, P75)] 59.29 (52.13, 66.03) 53.15 (46.21, 59.60) -8.160 < 0.001 红肉[g/d, (P25, P75)]b 10.23 (5.99, 25.00) 11.00 (6.27, 22.47) -1.198 0.231 牛奶[g/d, (P25, P75)]b 55.00 (7.50, 125.00) 55.00 (17.50, 197.50) -3.103 0.002 家禽[g/d, (P25, P75)]b 12.59 (6.50, 22.00) 11.00 (5.04, 22.00) -0.416 0.677 鱼类[g/d, (P25, P75)]b 25.00 (14.50, 48.73) 23.32 (13.65, 45.36) -0.238 0.812 皮蛋[g/d, (P25, P75)]b 1.50 (0.00, 3.50) 1.50 (0.00, 3.50) -0.262 0.793 注:a分类变量用χ2检验计算所得,连续型变量用秩和检验计算所得;b用残差法调整能量。 表 2 鸡蛋摄入频率与NAFLD关联的多因素logistic回归分析[OR(95% CI)]
Table 2. Multivariate logistic regression analysis of the relationship between egg intake frequency and nonalcoholic fatty liver[OR(95% CI)]
鸡蛋摄入频率(次/周) 病例/对照 模型1a 模型2b 模型3c ≥7 199/225 1.00 1.00 1.00 4~ 172/150 0.66(0.30~1.47) 0.55(0.22~1.38) 0.64(0.24~1.68) 1~ 121/105 1.55(0.86~2.78) 1.56(0.79~3.09) 1.66(0.78~3.53) 1~3 (次/月) 38/45 2.11(1.31~3.40) 1.65(0.93~2.94) 1.63(0.86~3.07) 0 11/16 2.11(1.34~3.32) 1.86(1.10~3.15) 1.82(1.02~3.23) 注: a调整性别和年龄;b在模型1基础上进一步调整:BMI、教育程度、职业、收入、吸烟、饮酒、体育锻炼、慢性病史、以及能量的摄入。c在模型2基础上进一步调整收缩压、舒张压、TG、TC、HDL-C、LDL-C、ALT、SUA、FPG。 表 3 鸡蛋摄入频率与NAFLD关系多因素Logistic敏感性分析[OR(95% CI)]
Table 3. Sensitivity analysis of the relationship between egg intake frequency and nonalcoholic fatty [OR(95% CI)]
调整的变量 鸡蛋摄入频率 ≥7(次/周) 4~6(次/周) 1~3(次/周) 1~3(次/月) 0 其他营养素摄入 膳食胆固醇 1.00 0.52(0.20~1.34) 1.73(0.77~3.85) 1.67(0.94~2.98) 1.98(1.10~3.57) 饱和脂肪酸 1.00 0.55(0.22~1.39) 1.61(0.81~3.19) 1.62(0.91~2.89) 1.88(1.11~3.19) 不饱和脂肪酸 1.00 0.57(0.23~1.46) 1.83(0.90~3.71) 1.43(0.79~2.59) 1.98(1.15~3.39) 钠 1.00 0.55(0.22~1.38) 1.56(0.79~3.09) 1.65(0.93~2.94) 1.86(1.09~3.15) 胆固醇相关食物的摄入 红肉 1.00 0.55(0.22~1.38) 1.55(0.78~3.08) 1.66(0.93~2.95) 1.85(1.09~3.15) 家禽 1.00 0.55(0.22~1.38) 1.56(0.79~3.09) 1.67(0.94~2.99) 1.87(1.10~3.17) 牛奶 1.00 0.55(0.22~1.37) 1.52(0.77~3.02) 1.67(0.94~2.98) 1.83(1.08~3.11) 鱼类 1.00 0.54(0.22~1.37) 1.56(0.79~3.08) 1.65(0.93~2.94) 1.86(1.10~3.15) 皮蛋 1.00 0.55(0.22~1.38) 1.59(0.80~3.15) 1.65(0.93~2.93) 1.86(1.10~3.15) 以上五种食物 1.00 0.54(0.22~1.36) 1.55(0.78~3.09) 1.69(0.94~3.02) 1.84(1.08~3.14) 注: a调整性别和年龄;b在模型1基础上进一步调整:BMI、教育程度、职业、收入、吸烟、饮酒、体育锻炼、慢性病史、以及能量的摄入。c在模型2基础上进一步调整收缩压、舒张压、TG、TC、HDL-C、LDL-C、ALT、SUA、FPG。 表 4 每天摄入鸡蛋与NAFLD关联的多因素Logistics回归分析模型[OR(95% CI)]
Table 4. Multivariate Logistic regression analysis model of the association between daily egg intake and nonalcoholic fatty liver disease[OR(95% CI)]
鸡蛋摄入 病例/对照 模型1a 模型2b 模型3c 每天未摄入 342/316 1.00 1.00 1.00 每天摄入 199/225 0.63(0.44~0.92) 0.64(0.42~0.96) 0.63(0.40~0.98) 注: a调整性别和年龄;b在模型1基础上进一步调整:BMI、教育程度、职业、收入、吸烟、饮酒、体育锻炼、慢性病史、以及能量的摄入。c在模型2基础上进一步调整收缩压、舒张压、TG、TC、HDL-C、LDL-C、ALT、SUA、FPG。 -
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