Skip to main content

Table 4 Association between age at first birth and poor physical performance, defined as SPPB ≤8 (N = 907)

From: Early maternal age at first birth is associated with chronic diseases and poor physical performance in older age: cross-sectional analysis from the International Mobility in Aging Study

  Model 1 Model 2 Model 3
  OR (95% CI) p-value OR (95% CI) p-value OR (95% CI) p-value
Age 1st birth       
 ≤18 1.81 (1.21 – 2.69)   1.75 (1.17 – 2.64)   1.48 (0.96 – 2.28) 0.07
 >18 1 <0.01 1 <0.01 1  
 Age1 1.12 (1.06 – 1.18) <0.01 1.12 (1.06 – 1.18) <0.01 1.11 (1.04 – 1.17) <0.01
Education       
 ≤8 years 1.59 (1.03 – 2.46)   1.58 (1.01 – 2.45)   1.72 (1.08 – 2.72)  
 >9 years 1 0.04 1 0.04 1 0.02
 Childhood economic adversity2 1.22 (1.02 – 1.46) 0.03 1.22 (1.02 – 1.47) 0.03 1.17 (0.97 – 1.42) 0.10
Study Site       
 St Hyacinthe 1.08 (0.58 – 1.98) 0.82 1.07 (0.58 – 1.98) 0.82 1.05 (0.55 – 2.00) 0.88
 Tirana 3.33 (1.89 – 5.87) <0.01 3.33 (1.89 – 5.86) <0.01 3.45 (1.86 – 6.40) <0.01
 Manizales 1.13 (0.58 – 2.21) 0.72 1.10 (0.56 – 2.17) 0.78 1.42 (0.70 – 2.89) 0.33
 Natal 2.70 (1.41 – 5.18) <0.01 2.69 (1.40 – 5.18) <0.01 3.38 (1.66 – 6.87) <0.01
Kingston 1   1   1 1
Parity      
 ≥3 children   1.04 (0.72 – 1.50)   1.06 (0.72 – 1.56)  
 <3 children   1 0.82 1 0.77
Diabetes3    
 Yes   1.68 (1.15 – 2.45)  
 No   1 <0.01
Stroke    
 Yes   2.76 (1.43 – 5.32)  
 No   1 <0.01
Arthritis    
 Yes   2.08 (1.47 – 2.97)  
 No   1 <0.01
Cancer    
 Yes   2.08 (1.10 – 3.93)  
 No   1 0.02
Lung disease    
 Yes   2.20 (1.41 – 3.45)  
 No   1 <0.01
Coronary heart disease    
 Yes   1.64 (1.11 – 2.41)  
 No   1 <0.01
Osteoporosis    
 Yes   0.98 (0.69 – 1.40)  
 No   1 0.93
High blood pressure    
 Yes   1.00 (0.70 – 1.44)  
 No   1 0.99
  1. 1Age was centred at 64 because participants were only eligible for the study if they were between 64 and 75 years of age. The odds ratio corresponds to each addition year of age after 64.
  2. 2Childhood economic adversity scores can vary from 0 to 3. A point was given for each of the following self-reported childhood circumstances: poverty, hunger, and parental unemployment.
  3. 3Chronic diseases are self-reported measures.