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Table 3 Orthogonal factor loadings for owner-reported quality of life1

From: Quality of life and owner attitude to dog overweight and obesity in Thailand and the Netherlands

Scale/Subscale/Question number   Orthogonal factors
  IM GS AL/GA DF/BN IM/AL GS EI SO/BN BN/SA
Item Fac1 Fac2 Fac3 Fac4 Fac5 Fac6 Fac7 Fac8 Fac9
Eigenvalue   4.86 3.10 2.24 1.74 1.52 1.44 1.35 1.27 1.18
% of the total variance   14.3 9.1 6.6 5.1 4.5 4.2 4.0 3.7 3.5
Physical
General sickness (GS)
 Q1: My dog acts sick. 0.195 0.539 0.071 0.084 -0.043 0.158 0.322 -0.081 0.123
 Q2: My dog does not like being touched. 0.095 0.582 0.021 -0.122 -0.103 0.153 -0.095 0.069 0.181
 Q3: My dog has difficulty eliminating or eliminates more frequently than usual. 0.192 0.661 0.160 -0.094 0.043 0.018 0.051 0.115 0.022
 Q4: My dog has difficulty sleeping. 0.070 0.671 0.217 -0.057 0.057 -0.117 0.075 0.030 -0.225
 Q5: My dog vomits more than he/she used to. -0.107 0.569 -0.084 -0.021 0.066 0.202 0.135 -0.181 0.023
 Q6: My dog has difficulty breathing. 0.395 0.396 -0.058 0.230 0.083 0.182 0.189 -0.235 -0.171
 Q7: My dog’s temperament has changed. 0.219 0.504 0.120 0.067 -0.016 0.455 -0.077 -0.088 -0.206
 Q8: My dog has become aggressive to dogs or people who were accepted before. -0.024 0.107 0.202 -0.042 0.125 0.774 0.033 0.047 -0.062
 Q9: My dog gets lost in places that should be familiar. 0.169 0.214 0.005 -0.034 0.172 0.433 0.060 -0.092 -0.034
 Q10: My dog shows less desire to interact with other dogs or people than usual. 0.263 0.071 0.145 -0.132 0.062 0.621 0.190 -0.001 -0.048
Immobility (IM)
 Q11: My dog has a lot of energy. -0.073 -0.100 0.144 -0.084 -0.692 -0.168 -0.079 0.036 -0.148
 Q12: My dog rarely gets excited anymore. 0.568 0.051 0.042 -0.148 0.028 0.166 0.003 0.319 0.120
 Q13: My dog has difficulty getting up after lying down. 0.832 0.102 -0.084 -0.059 0.068 0.031 0.012 -0.067 0.002
 Q14: My dog has difficulty walking. 0.827 0.164 -0.036 -0.055 0.013 -0.008 0.073 -0.036 -0.017
 Q15: My dog plays less often. 0.727 0.069 0.003 0.026 -0.128 0.155 0.021 -0.147 -0.066
 Q16: My dog’s overall mobility is good (reverse score). 0.001 0.031 0.012 -0.154 -0.691 -0.123 -0.256 0.196 -0.014
External irritation (EI)
 Q17: My dog chews or scratches certain areas of skin until they become red and irritated. 0.028 0.045 0.045 -0.010 0.135 0.093 0.793 -0.025 0.015
 Q18: My dog has patches of fur missing. 0.100 0.157 0.226 -0.020 0.080 0.028 0.708 0.033 -0.056
Psychological
Anxiety when owner leaves (AL)
 Q19: My dog chews on things that he/she has been taught not to do. -0.008 -0.129 0.356 -0.075 0.594 -0.002 0.023 0.260 -0.002
 Q20: My dog whines when I leave. -0.043 0.171 0.419 0.057 0.271 0.119 -0.003 -0.165 -0.045
 Q21: My dog makes a mess when I’m away from home. -0.097 0.028 0.474 -0.020 0.615 -0.024 -0.049 -0.004 -0.006
General anxiety (GA)
 Q22: My dog is startled easily. -0.106 0.176 0.547 0.037 0.106 0.123 0.361 -0.154 0.111
 Q23: My dog cowers when it meets a new person or dog. -0.041 0.081 0.718 0.014 -0.092 0.294 0.044 -0.123 -0.011
 Q24: When my dog is in a new place, it puts its tail between its legs. 0.045 0.045 0.759 0.027 0.038 -0.031 0.130 -0.112 0.002
Social
Dog focused (DF)
 Q25: I play with my dog when it is ready to play. 0.145 0.036 0.076 0.446 0.080 -0.119 -0.062 0.187 0.042
 Q26: I pet my dog often. -0.022 -0.078 0.014 0.757 0.014 -0.037 -0.048 0.032 -0.001
 Q27: I groom my dog often. -0.037 -0.049 -0.043 0.670 -0.018 0.046 0.142 0.050 0.091
 Q28: I often spend my free time with my dog. -0.255 0.011 0.024 0.686 0.135 -0.078 -0.040 0.073 -0.085
Sociability (SO)
 Q29: My dog has the opportunity to play with other dogs. -0.067 -0.021 -0.146 0.177 0.098 -0.179 -0.029 0.662 -0.025
 Q30: My dog shares his/her toys with other animals. -0.049 -0.038 -0.194 0.208 -0.096 -0.024 0.074 0.718 -0.072
Environmental
Basic needs (BN)
 Q31: My dog has fresh water available throughout the day. -0.056 -0.275 0.087 0.464 -0.140 0.079 -0.055 0.021 0.511
 Q32: My dog goes outside when he/she needs to. -0.038 0.021 -0.109 0.003 -0.121 0.317 -0.098 0.465 0.093
Sleeping area (SA)
 Q33: My dog’s sleeping area is her/her own. 0.068 0.013 -0.036 -0.055 -0.017 -0.249 -0.113 0.009 0.729
 Q34: My dog has his/her own place to sleep (e.g. bed of the owner). -0.085 0.106 0.031 0.095 0.318 0.055 0.169 -0.033 0.675
  1. 1The data from the owner reports of quality of life (n = 350) were subject to factor analysis. The Kaiser-Meyer-Olkin measure is 0.741, indicating a high sampling adequacy for the factor analysis. Bartlett’s test of sphericity indicates that the factor model is appropriate (Chi-square = 2934.523, df = 561, P < 0.0005). Factor
  2. loadings > 0.4 are considered to be high and are indicated in bold. The nine factors account for 55.0% of the total variance
  3. GS general sickness, IM immobility, EI external irritation, AL anxiety when owner leaves, GA general anxiety, DF dog focused, SO sociability, BN basic needs, SA sleep area