Skip to main content

Table 4 GLMM analysis of intervention mechanisms, time, intervention arm, covariates and clinical outcomes***

From: Evaluating mechanisms of change in an oral hygiene improvement trial with older adults

Variable Estimate Std. error p value CL
Upper Lower
Gingival Index
Self-efficacy *, ** − 0.02182 0.01692 0.1983 − 0.05512 0.01149
 Time − 0.07759 0.01911 < .0001 − 0.1152 − 0.03998
 Intervention*time (AMI) − 0.07721 0.02646 0.0038 − 0.1293 − 0.02514
Perceived risk *, ** − 0.00143 0.01333 0.9149 − 0.02765 0.02480
 Time − 0.07705 0.01920 < .0001 − 0.1148 − 0.03928
 Intervention*time (AMI) − 0.08163 0.02632 0.0021 − 0.1334 − 0.02984
Intent *, ** − 0.09234 0.03015 0.0024 − 0.1517 − 0.03302
 Time − 0.06996 0.01945 0.0004 − 0.1082 − 0.03169
 Intervention*time (AMI) − 0.07742 0.02656 0.0038 − 0.1297 − 0.02515
Norms *, ** − 0.03425 0.02415 0.1572 − 0.08177 0.01327
 Time − 0.07338 0.01936 0.0002 − 0.1115 − 0.03527
 Intervention * time (AMI) − 0.08009 0.02637 0.0026 − 0.1320 − 0.02821
Locus of control (*) − 0.04627 0.01366 0.0008 − 0.07314 − 0.01940
 Time − 0.07807 0.01906 < .0001 − 0.1156 − 0.04057
 Intervention*time (AMI) − 0.07298 0.02629 0.0058 − 0.1247 − 0.02125
Worry*, ** − 0.01702 0.01342 0.2056 − 0.04342 0.009383
 Time − 0.07398 0.01932 0.0002 − 0.1120 − 0.03595
 Intervention*time (AMI) − 0.08018 0.02633 0.0025 − 0.1320 − 0.02836
Fears *, ** − 0.01006 0.009907 0.3107 − 0.02956 0.009435
 Time − 0.07467 0.01932 0.0001 − 0.1127 − 0.03666
 Intervention * time (AMI) − 0.08017 0.02636 0.0026 − 0.1320 − 0.02830
Sugar Intake*, ** 0.009035 0.01961 0.6454 − 0.02956 0.04763
 Time − 0.07468 0.01992 0.0002 − 0.1139 − 0.03549
 Intervention * time (AMI) − 0.08229 0.02636 0.0020 − 0.1342 − 0.03043
Brushing *, ** − 0.06488 0.02670 0.0157 − 0.1174 − 0.01234
 Time − 0.07580 0.01924 0.0001 − 0.1137 − 0.03794
 Intervention * time (AMI) − 0.07593 0.02652 0.0045 − 0.1281 − 0.02375
Flossing *, ** − 0.05892 0.02018 0.0038 − 0.09863 − 0.01921
 Time − 0.07127 0.01926 0.0003 − 0.1092 − 0.03338
 Intervention * time (AMI) − 0.07495 0.02640 0.0048 − 0.1269 − 0.02300
Plaque scores
Self efficacy*,** 0.003714 0.01318 0.7783 − 0.02222 0.02965
 Time − 0.08234 0.01732 < .0001 − 0.1164 − 0.04825
 Intervention *time (AMI) − 0.08175 0.02391 0.0007 − 0.1288 − 0.03469
Perceived risk *, ** − 0.01705 0.01035 0.1005 − 0.03742 0.003318
 Time − 0.08099 0.01732 < .0001 − 0.1151 − 0.04691
 Intervention*time (AMI) − 0.08052 0.02373 0.0008 − 0.1272 − 0.03383
Intent *, ** − 0.00157 0.02170 0.9422 − 0.04427 0.04112
 Time − 0.08229 0.01739 < .0001 − 0.1165 − 0.04807
 Intervention*time (AMI) − 0.08091 0.02377 0.0008 − 0.1277 − 0.03412
Norms *, ** − 0.02574 0.01887 0.1737 − 0.06287 0.01140
 Time − 0.07957 0.01745 < .0001 − 0.1139 − 0.04523
 Intervention * time (AMI) − 0.07977 0.02378 0.0009 − 0.1266 − 0.03296
Locus of control *, ** − 0.01988 0.01068 0.0638 − 0.04090 0.001148
 Time − 0.08273 0.01731 < .0001 − 0.1168 − 0.04866
 Intervention*time (AMI) − 0.07728 0.02383 0.0013 − 0.1242 − 0.03038
Worry *, ** − 0.02246 0.009910 0.0241 − 0.04197 − 0.00296
 Time − 0.07807 0.01742 < .0001 − 0.1123 − 0.04379
 Intervention*time (AMI) − 0.07914 0.02377 0.0010 − 0.1259 − 0.03236
Fears *,** − 0.02562 0.007592 0.0008 − 0.04056 − 0.01068
 Time − 0.07602 0.01720 < .0001 − 0.1099 − 0.04217
 Intervention*time (AMI) − 0.07718 0.02348 0.0011 − 0.1234 − 0.03097
Sugar intake *,** − 0.01819 0.01419 0.2009 − 0.04611 0.009737
 Time − 0.08746 0.01771 < .0001 − 0.1223 − 0.05260
 Intervention * time (AMI) − 0.07973 0.02371 0.0009 − 0.1264 − 0.03307
Brushing *,** − 0.02395 0.01911 0.2111 − 0.06155 0.01365
 Time − 0.08191 0.01733 < .0001 − 0.1160 − 0.04782
 Intervention* time (AMI) − 0.07882 0.02382 0.0011 − 0.1257 − 0.03194
Flossing *,** − 0.01959 0.01515 0.1967 − 0.04940 0.01021
 Time − 0.08044 0.01739 < .0001 − 0.1147 − 0.04622
 Intervention* time (AMI) − 0.07872 0.02383 0.0011 − 0.1256 − 0.03182
  1. *Refers to sex as covariate; ** refers to education as covariate ***; Slicing effects show that the change occurs in intervention A versus B across all analyses