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Estimated dietary sodium intake in Thailand: A nationwide population survey with 24-hour urine collections. 2021
Worawon Chailimpamontree, and
Surasak Kantachuvesiri, and
Wichai Aekplakorn, and
Raweewan Lappichetpaiboon, and
Nintita Sripaiboonkij Thokanit, and
Prin Vathesatogkit, and
Ananthaya Kunjang, and
Natthida Boonyagarn, and
Penmat Sukhonthachit, and
Narinphop Chuaykarn, and
Patthrapon Sonkhammee, and
Payong Khunsaard, and
Phassakon Nuntapanich, and
Pattaraporn Charoenbut, and
Comsun Thongchai, and
Apinya Uttarachai, and
Wisrut Kwankhoom, and
Fuangfah Rattanakanahutanon, and
Krich Ruangchai, and
Nadchar Yanti, and
Natnapa Sasang, and
Sushera Bunluesin, and
Renu Garg
Division of Nephrology, Department of Medicine, Chandrubeksa hospital, Nakhon Pathom, Thailand.
Thailand has committed to reducing population sodium intake by 30% by 2025. However, reliable nationally representative data are unavailable for monitoring progress toward the goal. We estimated dietary sodium consumption using 24-hour urinary analyses in a nationally representative, cross-sectional population-based survey. We selected 2388 adults (aged ≥ 18 years) from the North, South, North-east, Central Regions, and Bangkok, using multi-stage cluster sampling. Mean sodium excretion was inflated by 10% to adjust for non-urinary sources. Multivariate logistic regression was performed to assess factors associated with sodium consumption ≥ 2000 mg. Among 1599 (67%) who completed urine collection, mean age was 43 years, 53% were female, and 30% had hypertension. Mean dietary sodium intake (mg/day) was 3636 (±1722), highest in South (4108 ± 1677), and lowest in North-east (3316 ± 1608). Higher sodium consumption was independently associated with younger age (Adjusted Odds Ratio (AOR) 2.81; 95% Confidence interval (CI): 1.53-5.17; p = .001); higher education (AOR 1.79; 95% CI: 1.19-2.67; p = .005), BMI ≥ 25 (AOR 1.55; 95% CI: 1.09-2.21; p=.016), and hypertension (AOR 1.58; 95% CI: 1.02-2.44; p = .038). Urine potassium excretion was 1221 mg/day with little variation across Regions. Estimated dietary sodium consumption in Thai adults is nearly twice as high as recommended levels. These data provide a benchmark for future monitoring.
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