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Table 2 Annual average thyroid stimulating hormone levels according to night shift work status

From: Relationship between thyroid stimulating hormone and night shift work

  Year Total Night shift work  
No Yes
n n Mean SD n mean SD p-valuea
TSH 2011 553 305 2.60 2.49 248 2.84 2.06 0.194
2012 602 322 2.41 2.11 280 2.63 1.82 0.149
2013 776 360 2.73 1.68 416 2.93 1.96 0.058
2014 831 367 2.68 2.21 464 2.89 2.21 0.120
2015 967 421 2.98 2.16 546 3.27 2.80 0.106
  1. TSH thyroid stimulating hormone, SD standard deviation
  2. aAnalyzed using analysis of covariance (adjusted for age)