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Table 4 The combined effect of the temperature of oolong tea drinking and the risk index group

From: Oolong tea consumption and its interactions with a novel composite index on esophageal squamous cell carcinoma

Risk index groupVariablesDrinking warm oolong teaDrinking hot oolong tea
Low index groupTea consumption
 No1.001.00
 Yes0.63(0.30,1.30)1.16(0.74,1.83)
Frequency of tea consumption
 Never drinking1.001.00
 1~5times/week1.21(0.36,4.01)1.37(0.61,3.10)
  ≥ 5 times/week0.48(0.20,1.14)1.16(0.73,1.86)
Duration of tea consumption
 Never drinking1.001.00
 1~10 year0.63(0.16,2.50)0.94(0.40,2.20)
  ≥ 10 year1.04(0.23,4.84)1.24(0.78,1.99)
High index groupTea consumption
 No1.001.00
 Yes0.70(0.28,1.74)3.14(1.93,5.11)
Frequency of tea consumption
 Never drinking1.001.00
  < 5times/week0.38(0.45,32.26)6.63(2.26,19.44)
  ≥ 5 times/week0.42(0.14,1.24)2.71(1.63,4.50)
Duration of tea consumption
 Never drinking1.001.00
 1~10 year0.42(0.07,2.59)3.16(1.15,8.70)
  ≥ 10 year0.63(0.20,2.05)3.46(2.03,5.91)