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Table 4 Health status and health behaviour characteristics for 1946–51 cohort and chi-square associations between these characteristics and caring†

From: Socioeconomic factors associated with trajectories of caring by young and mid-aged women: a cohort study

Characteristics Baseline N (%) Latent classes (N = 12,282) x 2
   Overall highest (n = 2,605) Overall lowest (n = 8,618) Low then increasing (n = 1,059)  
Self-rated health      x 2 (6) =10.9
Excellent 1,759 (12.8%) 12.0% 14.0% 14.1%  
Very good 4,857 (35.4%) 35.9% 37.0% 35.6%  
Good 5,379 (39.2%) 41.5% 38.7% 39.8%  
Fair/poor 1,560 (11.4%) 10.5% 10.3% 10.5%  
Physical activity (S2) a      x 2 (6) =7.7
Nil/sedentary 2,028 (14.8%) 16.9% 18.4% 15.5%  
Low 3,470 (25.3%) 30.2% 30.9% 31.2%  
Moderate 2,483 (18.1%) 23.0% 21.9% 23.1%  
High 3,245 (23.7%) 29.9% 28.8% 30.2%  
Body mass index b      x 2 (4) =10.8*
Underweight/healthy weight 6,923 (50.5%) 50.1% 53.8% 52.8%  
Overweight 3,804 (27.7%) 30.5% 28.5% 28.6%  
Obese 2,452 (17.8%) 19.4% 17.7% 18.6%  
Cigarette smoking      x 2 (4) =10.5*
Current smoker 2,431 (17.7%) 16.7% 17.3% 14.9%  
Ex-smoker 3,776 (27.5%) 27.4% 29.3% 27.7%  
Never smoker 7,050 (51.4%) 55.9% 53.4% 57.4%  
Alcohol consumption c      x 2 (6) =33.1***
Non-drinker 2,063 (15.0%) 16.6% 13.9% 13.1%  
Rarely drinks 4,272 (31.1%) 32.4% 30.3% 33.5%  
Low risk drinker 6,533 (47.6%) 46.6% 50.1% 49.6%  
Risky drinker 716 (5.2%) 4.3% 5.7% 3.8%  
  1. †from latent class analysis; *P ≤ 0.05, ***P ≤ 0.001 (all 2-sided); aphysical activity scores were derived from self-reported frequency and intensity of leisure-time physical activity and categorized as sedentary < 40 MET/minutes per week, low = 40- 600 MET/minutes per week, moderate = 600-1,200 MET/minutes per week, high >1,200 MET/minutes per week; bBMI = weight in kilograms/height in metres2 and categorised as underweight = BMI <18.5, healthy weight = BMI ≥18.5 - <25, overweight = BMI ≥25 - <30 and obese = BMI ≥30; crarely = drinks less than 1/week, low-risk ≤ 14 drinks/week, risky ≥ 15 drinks/week; S2 = asked at survey 2; all variables had ≤4% missing data except for physical activity (18.1%).