Table 2 Linear regression models for contribution of measured weight to variation in the discrepancy between self-report and measured BMI by country (sexes combined)^a,b

China (N = 13,384)

0.043/<0.001***

 Constant

5.423 (0.529)

<0.001

 Age

0.009 (0.004)

0.021

=0.028

 Sex

−0.722 (0.126)

−0.071

<0.001

 Education level: Completed less than primary

0.241 (0.143)

0.018

=0.091

 Completed primary

0.143 (0.142)

0.011

=0.314

 Completed secondary

0.294 (0.147)

0.024

=0.045

 Completed high school

0.425 (0.165)

0.029

=0.010

 Completed college/university/post-grad

0.356 (0.231)

0.015

=0.124

 Income

0.485 (0.110)

0.042

<0.001

 Total Physical Activity Level

−0.031 (0.014)

−0.020

=0.024

 Drinking: Do not currently drink

0.082 (0.217)

0.003

=0.750

 Occasionally

−0.092 (0.148)

−0.006

=0.533

 Moderate/heavy drinker

0.034 (0.139)

0.002

=0.807

 Smoking: Do not currently smoke

−0.467 (0.210)

−0.021

=0.026

 Occasionally

−0.431 (0.285)

−0.013

=0.131

 Daily

−0.015 (0.135)

−0.001

=0.911

 Self-rated health: Bad

−0.229 (0.332)

−0.017

=0.490

 Moderate

−0.041 (0.324)

−0.004

=0.898

 Good

−0.069 (0.328)

−0.006

=0.832

 Very good

−0.096 (0.383)

−0.004

=0.803

 Measured Weight

−0.095 (0.004)

−0.224

<0.001

India (N = 4,328)

0.015/<0.001***

 Constant

13.074 (2.485)

<0.001

 Age

0.035 (0.018)

0.035

=0.057

 Sex

−0.568 (0.638)

−0.018

=0.373

 Education Level: Completed less than primary

−2.225 (0.813)

−0.045

=0.006

 Completed primary

−2.607 (0.746)

−0.060

<0.001

 Completed secondary

−3.188 (0.809)

−0.070

<0.001

 Completed high school

−3.055 (0.890)

−0.064

=0.001

 Completed college/university/post-grad

−3.437 (1.082)

−0.059

=0.002

 Income

−0.113 (0.595)

−0.004

=0.849

 Total Physical Activity Level

−0.036 (0.071)

−0.008

=0.618

 Drinking: Do not currently drink

−2.134 (1.151)

−0.029

=0.064

 Occasionally

−0.643 (0.960)

−0.011

=0.503

 Moderate/heavy drinker

−0.935 (1.138)

−0.013

=0.412

 Smoking: Do not currently smoke

−0.612 (1.298)

−0.008

=0.637

 Occasionally

−0.548 (1.524)

−0.006

=0.719

 Daily

−0.175 (0.592)

−0.005

=0.768

 Self-rated health: Bad

−1.136 (1.889)

−0.026

=0.548

 Moderate

0.895 (1.835)

0.028

=0.626

 Good

0.539 (1.859)

0.016

=0.772

 Very good

0.700 (2.197)

0.009

=0.750

 Measured Weight

−0.173 (0.021)

−0.139

<0.001

Mexico (N = 718)

0.010/=0.006**

 Constant

4.545 (2.680)

=0.090

 Age

−0.021 (0.014)

−0.068

=0.133

 Sex

−0.857 (0.405)

−0.100

=0.035

 Education Level: Completed less than primary

−0.711 (0.609)

−0.077

=0.243

 Completed primary

−0.831 (0.641)

−0.085

=0.195

 Completed secondary

−0.077 (0.740)

−0.006

=0.917

 Completed high school

−1.319 (0.988)

−0.063

=0.182

 Completed college/university/post-grad

0.271 (0.737)

0.023

=0.713

 Income

0.452 (0.463)

0.041

=0.329

 Total Physical Activity Level

−0.055 (0.044)

−0.047

=0.218

 Drinking: Do not currently drink

0.834 (0.441)

0.082

=0.059

 Occasionally

−0.646 (0.428)

−0.068

=0.132

 Moderate/heavy drinker

−1.386 (0.825)

−0.069

=0.093

 Smoking: Do not currently smoke

0.235 (0.421)

0.024

=0.577

 Occasionally

−0.082 (0.654)

−0.005

=0.900

 Daily

−0.023 (0.497)

−0.002

=0.963

 Self-rated health: Bad

−0.017 (2.232)

−0.001

=0.994

 Moderate

−0.531 (2.183)

−0.062

=0.808

 Good

−0.212 (2.185)

−0.024

=0.923

 Very good

−0.681 (2.311)

−0.032

=0.768

 Measured Weight

−0.032 (0.012)

−0.111

=0.006

Russia (N = 3,793)

0.042/<0.001***

 Constant

4.223 (0.992)

<0.001

 Age

−0.004 (0.006)

−0.013

=0.524

 Sex

−0.266 (0.156)

−0.035

=0.088

 Education Level: Completed less than primary

−1.368 (0.799)

−0.045

=0.087

 Completed primary

−1.301 (0.681)

−0.089

=0.056

 Completed secondary

−1.182 (0.660)

−0.122

=0.073

 Completed high school

−1.310 (0.656)

−0.177

=0.046

 Completed college/university/post-grad

−1.326 (0.667)

−0.145

=0.047

 Income

0.095 (0.167)

0.010

=0.570

 Total Physical Activity Level

0.032 (0.018)

0.029

=0.085

 Drinking: Do not currently drink

0.014 (0.194)

0.001

=0.943

 Occasionally

−0.144 (0.153)

−0.019

=0.348

 Moderate/heavy drinker

−0.146 (0.282)

−0.010

=0.604

 Smoking: Do not currently smoke

−0.266 (0.208)

−0.023

=0.202

 Occasionally

0.435 (0.449)

0.016

=0.333

 Daily

0.009 (0.197)

0.001

=0.965

 Self-rated health: Bad

1.029 (0.509)

0.116

=0.044

 Moderate

1.095 (0.504)

0.145

=0.030

 Good

0.954 (0.529)

0.094

=0.071

 Very good

0.566 (0.826)

0.014

=0.494

 Measured Weight

−0.052 (0.004)

−0.209

<0.001

South Africa (N = 790)

0.018/<0.001***

 Constant

3.822 (5.369)

=0.477

 Age

0.025 (0.046)

0.021

=0.585

 Sex

−0.686 (1.050)

−0.025

=0.514

 Education Level: Completed less than primary

2.122 (1.653)

0.068

=0.200

 Completed primary

2.120 (1.722)

0.064

=0.219

 Completed secondary

1.967 (1.897)

0.057

=0.300

 Completed high school

0.468 (2.149)

0.012

=0.828

 Completed college/university/post-grad

2.059 (2.380)

0.047

=0.387

 Income

−1.173 (1.144)

−0.045

=0.306

 Total Physical Activity Level

0.170 (0.159)

0.040

=0.286

 Drinking: Do not currently drink

2.116 (7.832)

0.010

=0.787

 Occasionally

0.896 (1.490)

0.024

=0.548

 Moderate/heavy drinker

1.227 (1.757)

0.028

=0.485

 Smoking: Do not currently smoke

−0.311 (1.967)

−0.006

=0.874

 Occasionally

−0.356 (2.856)

−0.005

=0.901

 Daily

−2.014 (1.374)

−0.060

=0.143

 Self-rated health: Bad

1.244 (3.886)

0.038

=0.749

 Moderate

2.428 (3.802)

0.090

=0.523

 Good

3.014 (3.855)

0.102

=0.435

 Very good

5.418 (4.281)

0.098

=0.206

 Measured Weight

−0.095 (0.025)

−0.143

<0.001