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Table 3 Linear regression coefficient after exponentiation for the relation between cortisol outcomes and aircraft noise levels

From: Saliva cortisol in relation to aircraft noise exposure: pooled-analysis results from seven European countries

 MALEFEMALE
Morning level (nmol. L−1)Evening level (nmol. L−1)Variation per hour (nmol. L−1.H−1)Relative-variation per hourMorning level (nmol. L− 1)Evening level (nmol. L− 1)Variation per hour (nmol. L− 1.H− 1)Relative-variation per hour
exp(β)CI95%exp(β)CI95%exp(β)CI95%exp(β)CI95%exp(β)CI95%exp(β)CI95%exp(β)CI95%exp(β)CI95%
Crude estimatesLAeq,16h0.96(0.90–1.02)0.99(0.91–1.07)0.90(0.82–1.00)0.95(0.88–1.01)1.00(0.94–1.07)1.04(0.96–1.13)0.92(0.83–1.01)0.91(0.86–0.97)
LAeq,24h0.95(0.88–1.02)0.98(0.9–1.070)0.90(0.80–1.00)0.95(0.88–1.02)1.02(0.95–1.09)1.06(0.97–1.15)0.93(0.84–1.04)0.92(0.86–0.98)
Lden0.96(0.89–1.03)1.00(0.91–1.09)0.90(0.81–1.01)0.94(0.88–1.01)1.01(0.95–1.08)1.08(1.00–1.18)0.91(0.82–1.02)0.91(0.85–0.97)
Lnight1.01(0.94–1.08)1.08(1.00–1.17)0.99(0.89–1.09)0.98(0.92–1.05)1.04(0.97–1.10)1.24(1.15–1.34)0.97(0.87–1.07)0.93(0.88–0.99)
Adjusted modelsaLAeq,16h0.99(0.92–1.06)1.04(0.95–1.12)0.95(0.86–1.06)0.97(0.90–1.04)1.04(0.98–1.10)1.08(1.00–1.16)0.95(0.86–1.06)0.92(0.86–0.98)
LAeq,24h0.98(0.91–1.05)1.03(0.94–1.12)0.94(0.84–1.06)0.96(0.89–1.04)1.05(0.98–1.12)1.08(1.00–1.17)0.96(0.86–1.08)0.92(0.85–0.98)
Lden0.99(0.92–1.06)1.04(0.95–1.14)0.95(0.85–1.06)0.96(0.89–1.04)1.03(0.97–1.10)1.09(1.01–1.18)0.93(0.84–1.04)0.90(0.84–0.97)
Lnight1.00(0.93–1.08)1.05(0.97–1.15)0.95(0.85–1.06)0.95(0.88–1.02)1.00(0.94–1.07)1.11(1.02–1.20)0.89(0.80–1.00)0.89(0.83–0.96)
  1. a adjusted for country, alcohol intake, smoking habits, physical activity, education level, age and BMI (statistically significant values in bold)