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Table 2 Description of daily fluid intake (mL) among adults (18–87 years) in summer and winter (n = 584)

From: Risk factor analysis of insufficient fluid intake among urban adults in Wuxi, China: a classification and regression tree analysis

VariablesNSummerWinter
Median (P25–P75)pMedian(P25–P75)p
Gender
 Man2781300 (900–1750)< 0.00011100 (800–1450)<  0.0001
 Woman3061000 (700–1350) 996 (700–1250) 
Age (years)
 18–341951050 (700–1550)0.062950 (700–1250)0.128
 35–541911200 (800–1500) 1000 (800–1400) 
  ≥ 551981200 (819–1550) 1025 (800–1300) 
Location (Community)
 A1931220 (850–1600)0.2061000 (750–1300)*0.002
 B1921100 (758–1600) 950 (650–1250)** 
 C1991100 (700–1430) 1100 (900–1300) 
Labor worker
 Yes1021100 (650–1450)0.094923 (650–1200)0.025
 No4821110 (800–1550) 1000 (750–1300) 
BMI (kg/m2)
  < 18.528800 (475–1339)***0.012900 (613–1338)0.374
 18.5–23.93681100 (750–1500) 1000 (750–1300) 
 24–27.91631300 (850–1650) 1000 (750–1250) 
  ≥ 28251200 (926–1650) 900 (700–1150) 
  1. *: p = 0.029, compared with C Community; **: p = 0.002, compared with C Community; ***: p = 0.041, compared with BMI 24–27.9 kg/m2