TABLE 2

Risk Factors for Early (n = 176) and Late (n = 121) Endpoints

EndpointRisk factor*Odds ratio unadjustedP valueOdds ratio adjustedP value
SialadenitisAge0.997 (0.98–1.02)0.790.99 (0.97–1.02)0.59
Male0.67 (0.32–1.39)0.280.59 (0.26–1.37)0.22
Iodine activity1.03 (0.96–1.10)0.401.03 (0.94–1.13)0.53
Iodine score1.28 (1.04–1.58)0.0201.31 (1.05–1.63)0.015
XerostomiaAge0.99 (0.97–1.02)0.551.00 (0.98–1.03)0.76
Male1.66 (0.74–3.75)0.221.79 (0.92–3.48)0.09
Iodine activity1.11 (0.98–1.25)0.0881.15 (1.04–1.29)0.010
Iodine score1.52 (1.09–2.11)0.0141.58 (1.16–2.16)0.004
Sialadenitis2.37 (1.28–4.41)0.0062.88 (1.64–5.07)0.001
% increase unadjusted% increase adjusted
Caries§Age1.5 (−0.1 to 3.2)0.071.4 (−0.3 to 3.2)0.12
Male−13.1 (−51.2 to 54.8)0.63−11.0 (−32.7 to 82.8)0.68
Iodine activity−2.0 (−9.6 to 6.3)0.63−3.2 (−9.5 to 3.4)0.33
Iodine score−3.1 (−27.5 to 29.7)0.83−14.7 (−33.9 to 10.1)0.22
Sialadenitis35.9 (−7.5 to 99.9)0.12−15.6 (−41.9 to 22.5)0.37
Xerostomia82.0 (10.9 to 199)0.01898.8 (26.5 to 212)0.003
Prior caries39.3 (18.6 to 63.7)0.00132.2 (12.0 to 56.1)0.001
Tooth brushing10.6 (−18.3 to 49.7)0.52−10.4 (−37.5 to 28.5)0.55
Tooth extraction§Age−1.32 (−4.40,1.85)0.41−0.72 (−4.27, 2.97)0.70
Male−26.4 (−75.0–116.5)0.58−45.1 (−85.4,106)0.37
Iodine activity6.91 (0.74–13.5)0.038.14 (1.07, 15.7)0.02
Iodine score−7.5 (−43.8–52.4)0.76−1.19 (−41.6, 67.2)0.96
Sialadenitis16.3 (−33.9, 105)0.60−10.6 (−56.2, 82.3)0.76
Xerostomia2.24 (−58.9, 154)0.96−25.7 (−73.1, 105)0.57
Prior caries1.14 (−30.6, 47.3)0.957.50 (−29.6, 64.1)0.74
Date of radioiodine therapy−5.46 (10.3,-0.42)0.03−5.11 (−10.9, 1.02)0.10
Tooth brushing−28.7 (−64.0, 41.3)0.33−39.6 (−72.1, 30.7)0.20
  • * The respective units are as follows: age, per year; male, vs. female; iodine activity, per GBq; iodine score, per gland; sialadenitis, per gland affected; prior caries, per site; tooth brushing, times per day.

  • Adjusted for all other covariates in the list.

  • Estimates were obtained from binomial regression models and refer to individual sites.

  • § Estimates were obtained from Poisson regression models and refer to individual sites.

  • Number of tooth extractions after radioiodine therapy in patients without prior extractions.

  • Corresponding 95% confidence intervals are in parentheses. Boldface type indicates statistical significance of the respective covariate.