Table 3.
Adjusted OR of obesity according to quartiles of 24 h urinary sodium excretion and sodium:potassium; Chinese adults aged 18–69 years, Shandong Province, 2011
| 24 h urinary Na excretion (mmol) | 24 h urinary Na:K | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | Q3 | Q4 | |||||||||
| OR | OR | 95 % CI | OR | 95 % CI | OR | 95 % CI | P value* | OR | OR | 95 % CI | OR | 95 % CI | OR | 95 % CI | P value* | |
| Overweight | ||||||||||||||||
| Model 1† | 1·00 | 1·68 | 0·97, 2·90 | 1·76 | 1·02, 3·04 | 2·82 | 1·70, 4·69 | <0·001 | 1·00 | 1·14 | 0·69, 1·87 | 1·11 | 0·67, 1·84 | 1·69 | 1·06, 2·69 | 0·016 |
| Model 2‡ | 1·00 | 1·54 | 0·87, 2·72 | 1·69 | 0·96, 2·98 | 2·52 | 1·47, 4·30 | <0·001 | 1·00 | 1·04 | 0·62, 1··74 | 0·99 | 0·59, 1·68 | 1·44 | 0·88, 2·36 | 0·097 |
| Obesity | ||||||||||||||||
| Model 1† | 1·00 | 1·34 | 1·03, 1·75 | 1·58 | 1·21, 2·07 | 2·15 | 1·66, 2·80 | <0·001 | 1·00 | 1·02 | 0·78, 1·31 | 1·09 | 0·84, 1·42 | 1·19 | 0·92, 1·54 | 0·15 |
| Model 2‡ | 1·00 | 1·20 | 0·90, 1·60 | 1·50 | 1·13, 2·00 | 2·03 | 1·53, 2·69 | <0·001 | 1·00 | 0·96 | 0·73, 1·26 | 1·03 | 0·78, 1·36 | 1·07 | 0·80, 1·41 | 0·53 |
| Abdominal obesity (WC) | ||||||||||||||||
| Model 1† | 1·00 | 1·59 | 1·22, 2·06 | 1·89 | 1·46, 2·46 | 2·61 | 2·01, 3·40 | <0·001 | 1·00 | 1·09 | 0·85, 1·41 | 1·22 | 0·94, 1·58 | 1·43 | 1·10, 1·85 | 0·005 |
| Model 2‡ | 1·00 | 1·44 | 1·08, 1·90 | 1·85 | 1·40, 2·45 | 2·53 | 1·91, 3·36 | <0·001 | 1·00 | 1·06 | 0·80, 1·39 | 1·18 | 0·90, 1·57 | 1·35 | 1·02, 1·79 | 0·024 |
| Abdominal obesity (WHR) | ||||||||||||||||
| Model 1† | 1·00 | 1·42 | 1·08, 1·86 | 1·49 | 1·14, 1··96 | 1·88 | 1·44, 2·46 | <0·001 | 1·00 | 1·24 | 0·95, 1·62 | 1·18 | 0·90, 1·54 | 1·63 | 1·25, 2·13 | <0·001 |
| Model 2‡ | 1·00 | 1·28 | 0·96, 1·71 | 1·44 | 1·08, 1·92 | 1·75 | 1·31, 2·32 | <0·001 | 1·00 | 1·23 | 0·92, 1·63 | 1·15 | 0·86, 1·54 | 1·57 | 1·18, 2·10 | 0·003 |
WC, waist circumference; WHR, waist-to-hip ratio.
*
P values for linear trends.
†
Adjusted for age.
‡
Adjusted for age, sex, high-school education, urbanization, leisure-time physical activity, alcohol consumption, smoking, hypertension, antihypertensive treatment in past two weeks, fasting plasma glucose and TAG.