A prospective cohort study of socioeconomic status, healthy lifestyle and the incidence of hypertension
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摘要:
目的 探讨社会经济地位(socioeconomic status, SES)、健康生活方式与高血压发病的关系,为高血压的防控提供参考依据。 方法 采用分层整群随机抽样于2010年对抽取的贵州省12个县(市、区)≥18岁常住居民共9 280人进行基线调查,于2016—2020年对该队列所有人群进行随访;采用t检验、χ2检验进行单因素分析,使用Cox比例风险回归模型分析SES、健康生活方式对高血压发病的影响。 结果 研究有效样本量为3 401人,高血压发病765人,人群高血压发病密度为32.53/1 000人年。多因素Cox回归结果显示:与低SES(<9分)人群相比,高SES(≥9分)人群高血压发病风险下降29.9%(HR=0.701, 95% CI: 0.584~0.842);与≤2种健康生活方式的人群相比,4种、≥5种健康生活方式人群发病风险分别降低25.7%(HR=0.743, 95% CI: 0.581~0.950)、39.2%(HR=0.608, 95% CI: 0.455~0.812)。与SES低且健康生活方式≤2种的人群相比,SES低且具有3种、4种、≥5种健康生活方式人群高血压发病风险的差异均无统计学意义(均有P>0.05);SES高且具有3种、4种、≥5种健康生活方式的人群高血压发病风险分别降低36.3%(HR=0.637, 95% CI: 0.446~0.909)、44.0%(HR=0.560, 95% CI: 0.391~0.802)、55.8%(HR=0.442, 95% CI: 0.295~0.662)。 结论 SES较低人群是贵州省高血压防控的重点人群,应采取措施提高其SES,并有针对性地开展健康教育与健康促进工作。 Abstract:Objective To explore the relationship between socioeconomic status (SES), healthy lifestyle, and the incidence of hypertension, and to provide reference basis for the prevention and control of hypertension. Methods A total of 9 280 permanent residents aged 18 and over in 12 counties (cities and districts) of Guizhou Province were investigated by stratified cluster random sampling in 2010. All populations in this cohort were followed up from 2016 to 2020. T-test and χ2 test were used for univariate analysis. And Cox proportional hazards regression was used in analyzing the impact of socioeconomic status and healthy lifestyle on the incidence of hypertension. Results The adequate sample size of the final cohort study was 3 401. Among them, 765 had hypertension, and the incidence density was 32.53/1 000 person-years. The results of multivariate Cox regression showed that compared with the population with low SES (< 9 points), the risk of hypertension in the people with high SES (≥9 points) decreased by 29.9% (HR=0.701, 95% CI: 0.584-0.842). Compared to the population with ≤2 healthy lifestyles, the incidence risk of people with 4, 5, and more healthy lifestyles decreased by 25.7% (HR=0.743, 95% CI: 0.581-0.950) and 39.2% (HR=0.608, 95% CI: 0.455-0.812), respectively. However, the difference in hypertension risk in the population with low SES and those with 3, 4, 5, or more healthy lifestyles was not statistically significant (all P>0.05) compared to those with low SES and ≤2 healthy lifestyles. The risk of hypertension in the population with high SES and have 3, 4, 5 or more healthy lifestyles was reduced by 36.3% (HR=0.637, 95% CI: 0.446-0.909), 44.0% (HR=0.560, 95% CI: 0.391-0.802) and 55.8% (HR=0.442, 95% CI: 0.295 -0.662), respectively. Conclusions The population with low SES is critical in preventing and controlling hypertension in Guizhou Province. Various measures should be taken to improve their socioeconomic status and simultaneously carry out health education and health promotion. -
Key words:
- Socioeconomic status /
- Healthy lifestyle /
- Hypertension /
- Cohort study
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表 1 社会经济地位衡量指标的赋分标准
Table 1. Scoring criteria of socioeconomic status measurement indicators
家庭人均年收入(元) 个人受教育程度 职业 分值(分) ≥13 500 大专及以上 国家机关、党群组织、企事业单位负责人 6 8 000~<13 500 高中/中专/技校 专业技术人员、办事人员和有关人员 5 5 400~<8 000 初中毕业 商业、服务业人员 4 3 600~<5 400 小学毕业 生产运输设备操作人员及有关人员、农林牧渔水利业生产人员 3 2 000~<3 600 小学未毕业 其他劳动者 2 <2 000 未受过正规教育 无业 1 表 2 基线人群基本特征[n(%)]
Table 2. Basic characteristics of the baseline population[n(%)]
变量 高血压组
(n=765)非高血压组
(n=2 636)t/χ2值 P值 变量 高血压组
(n=765)非高血压组
(n=2 636)t/χ2值 P值 年龄(岁) 92.148 <0.001 不吸烟 2.707 0.100 18~<45 367(17.63) 1 715(82.37) 否 254(24.26) 793(75.74) 45~<60 265(27.18) 710(72.82) 是 511(21.71) 1 843(78.29) ≥60 133(38.66) 211(61.34) 不饮酒 0.287 0.592 性别 4.032 0.045 否 280(23.01) 937(76.99) 男 373(24.06) 1 177(75.94) 是 485(22.21) 1 699(77.79) 女 392(21.18) 1 459(78.82) 蔬菜摄入≥300 g/d 0.591 0.442 民族 0.263 0.608 否 258(23.29) 850(76.71) 汉族 480(22.78) 1 627(77.22) 是 507(22.11) 1 786(77.89) 少数民族 285(22.02) 1 009(78.98) 水果摄入≥200 g/d 5.807 0.016 婚姻状况 16.589 <0.001 否 728(22.96) 2 443(77.04) 未婚 44(13.66) 278(86.34) 是 37(16.09) 193(83.91) 已婚/同居 647(23.21) 2 140(76.79) 烹调油摄入≤25 g/d 3.011 0.083 离婚/丧偶/分居 74(25.34) 218(74.66) 否 611(23.16) 2 027(76.84) 城乡居住地 6.652 0.010 是 154(20.18) 609(79.82) 城市 215(19.80) 871(80.20) 食盐摄入≤6 g/d 3.933 0.047 农村 550(23.76) 1 765(76.24) 否 566(23.40) 1 853(76.60) 家庭人均年收入a(元) 16.650 0.005 是 199(20.26) 783(79.74) <2 000 123(26.80) 336(73.20) 睡眠时间≥7 h/d 4.167 0.041 2 000~<3 600 152(23.21) 503(76.79) 否 113(26.34) 316(73.66) 3 600~<5 400 124(22.02) 439(78.98) 是 652(21.90) 2 320(78.10) 5 400~<8 000 115(22.82) 389(77.18) 代谢当量值
(x±s,mL/kg·min)111.9±116.4 118.3±126.9 1.256 0.209 8 000~<13 500 148(23.49) 482(76.51) 糖尿病a 1.498 0.221 ≥13 500 96(16.70) 479(83.30) 否 706(22.21) 2 473(77.79) 个人受教育程度 46.219 <0.001 是 55(25.82) 158(74.18) 未受过正规教育 164(32.35) 343(67.65) 血脂异常 1.389 0.239 小学未毕业 123(25.73) 355(74.27) 否 300(23.58) 972(76.42) 小学毕业 163(22.48) 562(77.52) 是 465(21.84) 1 664(78.16) 初中毕业 214(19.18) 902(80.82) 高血压家族史a 1.166 0.280 高中/中专/技校 68(17.30) 325(82.70) 否 483(22.07) 1 705(77.93) 大专及以上 33(18.13) 149(81.87) 是 84(19.72) 342(80.28) 职业 13.605 0.018 SES分组(分) a 18.979 <0.001 无业 110(22.49) 379(77.51) <9 335(26.42) 933(73.58) 其他劳动者 62(19.68) 253(80.32) ≥9 423(19.97) 1 695(80.03) 生产运输设备操作人员及有关人员、农林牧渔水利业生产人员 506(24.20) 1 585(75.80) 健康生活方式数量(种) 9.114 0.028 商业、服务业人员 30(17.05) 146(83.95) ≤2 200(25.94) 571(74.06) 专业技术人员、办事人员和有关人员 46(16.55) 232(83.45) 3 205(22.88) 691(77.12) 国家机关、党群组织、企事业单位负责人 11(21.15) 41(78.85) 4 226(21.48) 826(78.52) BMI分级(kg/m2) a 9.704 0.021 ≥5 134(19.65) 548(80.35) 正常 486(21.88) 1 735(78.12) 轻体重 36(17.39) 171(82.61) 超重 195(24.22) 610(75.78) 肥胖 47(29.75) 111(70.25) 注:a表示该变量有缺失值。 表 3 SES、健康生活方式分别对高血压发病的Cox回归分析
Table 3. Cox regression analysis of SES and healthy lifestyle on hypertension
变量 新发病数(人) 发病密度/1 000人年 HR(95% CI) 模型1 P值 模型2 P值 模型3 P值 SES分组(分) <9 335 39.58 1.000 1.000 1.000 ≥9 423 28.29 0.607(0.525~0.701) <0.001 0.689(0.592~0.802) <0.001 0.701(0.584~0.842) <0.001 健康生活方式分组(种) ≤2 200 38.51 1.000 1.000 1.000 3 205 33.44 0.836(0.688~1.016) 0.071 0.860(0.703~1.052) 0.142 0.848(0.671~1.072) 0.169 4 226 30.82 0.720(0.595~0.871) 0.001 0.801(0.650~0.987) 0.038 0.743(0.581~0.950) 0.018 ≥5 134 27.57 0.594(0.477~0.740) <0.001 0.690(0.541~0.879) 0.003 0.608(0.455~0.812) 0.001 注:模型1:不调整;模型2:调整年龄、性别、婚姻、城乡;模型3:在模型2基础上调整MET、健康生活方式/SES分组(在研究SES对高血压发病的影响时,调整健康生活方式;在研究健康生活方式对高血压发病的影响时,调整SES分组)、BMI、糖尿病、血脂异常及高血压家族史。 表 4 SES、健康生活方式联合作用对高血压发病的Cox回归分析
Table 4. Cox regression analysis of combination of SES and healthy lifestyle on the incidence of hypertension
SES分组(分) 健康生活方式分组(种) 新发病数(人) 发病密度/1 000人年 HR(95% CI) 模型1 P值 模型2 P值 模型3 P值 <9 ≤2 77 45.76 1.000 1.000 1.000 3 94 43.10 0.880(0.651~1.190) 0.406 0.916(0.676~1.240) 0.569 0.933(0.639~1.360) 0.718 4 105 36.12 0.707(0.527~0.949) 0.021 0.819(0.602~1.114) 0.203 0.812(0.555~1.187) 0.282 ≥5 59 34.85 0.614(0.437~0.862) 0.005 0.717(0.504~1.020) 0.064 0.702(0.452~1.089) 0.114 ≥9 ≤2 122 34.81 0.637(0.479~0.848) 0.002 0.736(0.550~0.986) 0.040 0.793(0.558~1.128) 0.198 3 108 27.59 0.487(0.363~0.653) <0.001 0.592(0.439~0.799) 0.001 0.637(0.446~0.909) 0.013 4 120 27.23 0.437(0.328~0.583) <0.001 0.570(0.422~0.769) <0.001 0.560(0.391~0.802) 0.002 ≥5 73 23.33 0.353(0.256~0.487) <0.001 0.486(0.347~0.682) <0.001 0.442(0.295~0.662) <0.001 注:模型1:不调整;模型2:调整年龄、性别、婚姻、城乡;模型3:在模型2基础上调整MET、BMI、糖尿病、血脂异常及高血压家族史。 -
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