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Table 2 Health risk factors and conditions of the 45 and Up Study and the NSW PHS populations

From: Investigation of relative risk estimates from studies of the same population with contrasting response rates and designs

  45 and Up Study PHS
Variable a N Crude % (95% CI) Weighted b % (95% CI) N Crude % (95% CI) Weighted c % (95% CI)
Fruit Consumption       
Don't eat fruit 6620 6.5 (6.4, 6.7) 6.5 (6.4, 6.7) 321 6.1 (5.5, 6.8) 6.1 (5.2, 6.9)
< 2 serves per day 31707 31.1 (30.9, 31.4) 31.0 (30.7, 31.4) 1719 32.8 (31.6, 34.1) 33.4 (31.8, 35.1)
≥ 2 serves per day 57620 56.6 (56.3, 56.9) 56.7 (56.3, 57.0) 3135 59.9 (58.5, 61.2) 59.4 (57.7, 61.2)
Missing 5865 5.8 (5.6, 5.9) 5.7 (5.6, 5.9) 61 1.2 (0.9, 1.5) 1.0 (0.7, 1.3)
Teeth       
Some/all natural teeth 88501 86.9 (86.7, 87.1) 88.0 (87.8, 88.2) 9321 86.7 (86.0, 87.3) 90.3 (89.7, 90.9)
No natural teeth 9953 9.8 (9.6, 10.0) 8.7 (8.5, 8.9) 1427 13.3 (12.6, 13.9) 9.7 (9.1, 10.3)
Missing 3358 3.3 (3.2, 3.4) 3.3 (3.2, 3.5) 6 0.1 (0.0, 0.1) 0.0 (0.0, 0.1)
Body Mass Index       
Underweight 1461 1.4 (1.4, 1.5) 1.5 (1.4, 1.6) 230 2.1 (1.9, 2.4) 1.9 (1.6, 2.3)
Normal Range 35219 34.6 (34.3, 34.9) 35.6 (35.2, 35.9) 4214 39.0 (38.1, 40.0) 38.4 (37.2, 39.6)
Overweight 37373 36.7 (36.4, 37.0) 36.6 (36.2, 36.9) 3774 35.0 (34.1, 35.9) 36.0 (34.8, 37.2)
Obese 20271 19.9 (19.7, 20.2) 19.2 (18.9, 19.5) 2205 20.4 (19.7, 21.2) 20.5 (19.4, 21.5)
Missing 7488 7.4 (7.2, 7.5) 7.1 (6.9, 7.3) 373 3.5 (3.1, 3.8) 3.2 (2.8, 3.7)
Ever diagnosed with hypertension       
No 72023 70.7 (70.5, 71.0) 72.1 (71.7, 72.4) 1189 52.1 (50.1, 54.2) 55.2 (52.6, 57.8)
Yes 25144 24.7 (24.4, 25.0) 22.9 (22.6, 23.2) 1086 47.6 (45.6, 49.7) 44.6 (42.0, 47.2)
Missing 4645 4.6 (4.4, 4.7) 5.0 (4.9, 5.2) 6 0.3 (0.1, 0.5) 0.2 (0.0, 0.4)
Ever diagnosed with diabetes       
No 88056 86.5 (86.3, 86.7) 86.6 (86.3, 86.8) 9450 88.4 (87.8, 89.0) 89.2 (88.4, 90.0)
Yes 9111 8.9 (8.8, 9.1) 8.4 (8.2, 8.6) 1202 11.2 (10.6, 11.8) 10.5 (9.7, 11.2)
Missing 4645 4.6 (4.4, 4.7) 5.0 (4.9, 5.2) 36 0.3 (0.2, 0.4) 0.3 (0.2, 0.4)
Ever diagnosed with asthma       
No 55034 84.0 (83.7, 84.3) 83.8 (83.5, 84.1) 8753 82.0 (81.3, 82.8) 83.2 (82.2, 84.1)
Yes 7653 11.7 (11.4, 11.9) 11.4 (11.1, 11.7) 1894 17.8 (17.0, 18.5) 16.7 (15.8, 17.6)
Missing 2835 4.3 (4.2, 4.5) 4.8 (4.6, 5.0) 22 0.2 (0.1, 0.3) 0.1 (0.1, 0.2)
Fallen in the past 12 months       
No 42038 75.1 (74.8, 75.5) 74.1 (73.7, 74.6) 2957 77.3 (76.0, 78.7) 77.5 (75.9, 79.1)
Yes 10757 19.2 (18.9, 19.6) 20.0 (19.6, 20.4) 856 22.4 (21.1, 23.7) 22.1 (20.6, 23.7)
Missing 49017 5.6 (5.4, 5.8) 5.8 (5.6, 6.1) 11 0.3 (0.1, 0.5) 0.4 (0.1, 0.6)
Last Mammography Screening       
Not within past 2 years 12622 26.2 (25.9, 26.6) 28.6 (28.1, 29.1) 1018 34.4 (32.7, 36.1) 36.7 (34.5, 39.0)
Within past 2 years 30056 62.5 (62.1, 62.9) 60.1 (59.6, 60.6) 1925 65.1 (63.4, 66.8) 62.8 (60.6, 65.1)
Missing 5413 11.3 (11.0, 11.5) 11.3 (11.0, 11.7) 15 0.5 (0.3, 0.8) 0.4 (0.2, 0.7)
Hysterectomy       
No 29487 73.9 (73.4, 74.3) 76.6 (76.1, 77.0) 1583 71.1 (69.2, 73.0) 74.2 (72.0, 76.4)
Yes 10431 26.1 (25.7, 26.6) 23.4 (23.0, 23.9) 630 28.3 (26.4, 30.2) 25.0 (22.8, 27.2)
Missing 0 - - 13 0.6 (0.3, 0.9) 0.8 (0.3, 1.3)
Psychological Distress       
Low\Moderate 81542 80.1 (79.8, 80.3) 80.7 (80.4, 81.0) 9503 88.8 (88.2, 89.4) 88.9 (88.1, 89.7)
High\Very high 6663 6.5 (6.4, 6.7) 6.8 (6.6, 7.0) 1101 10.3 (9.7, 10.9) 10.2 (9.4, 11.0)
Missing 13607 13.4 (13.2, 13.6) 12.5 (12.2, 12.7) 100 0.9 (0.8, 1.1) 0.9 (0.7, 1.2)
Current Smoker       
No 93685 92.0 (91.9, 92.2) 91.9 (91.7, 92.1) 9468 87.9 (87.3, 88.6) 88.1 (87.3, 89.0)
Yes 7575 7.4 (7.3, 7.6) 7.6 (7.4, 7.8) 1292 12.0 (11.4, 12.6) 11.8 (11.0, 12.7)
Missing 552 0.5 (0.5, 0.6) 0.5 (0.5, 0.6) 7 0.1 (0.0, 0.1) 0.1 (0.0, 0.1)
Last Bowel Screening       
Not within past 5 years 49036 54.8 (54.5, 55.2) 55.9 (55.6, 56.3) 2497 53.5 (52.1, 54.9) 54.6 (52.7, 56.4)
Within past 5 years 35990 40.3 (39.9, 40.6) 39.2 (38.8, 39.6) 2098 45.0 (43.5, 46.4) 43.3 (41.5, 56.4)
Missing 4387 4.9 (4.8, 5.0) 4.9 (4.7, 5.0) 72 1.5 (1.2, 1.9) 2.2 (1.4, 2.9)
Self-reported Health Status       
Excellent 14920 14.7 (14.4, 14.9) 15.5 (15.2, 15.8) 2433 17.8 (17.2, 18.5) 18.1 (17.2, 18.9)
Very Good 36046 35.4 (35.1, 35.7) 35.4 (35.0, 35.7) 3815 28.0 (27.2, 28.7) 28.5 (27.5, 29.5)
Good 33178 32.6 (32.3, 32.9) 32.1 (31.7, 32.4) 3990 29.2 (28.5, 30.0) 29.8 (28.7, 30.8)
Fair 11878 11.7 (11.5, 11.9) 11.4 (11.2, 11.6) 2265 16.6 (16.0, 17.2) 16.0 (15.2, 16.8)
Poor 2090 2.1 (2.0, 2.1) 2.0 (1.9, 2.1) 863 6.3 (5.9, 6.7) 5.8 (5.3, 6.3)
Very Poor d N/A    239 1.8 (1.5, 2.0) 1.6 (1.3, 1.9)
Missing 3700 3.6 (3.5, 3.7) 3.7 (3.5, 3.8) 44 0.3 (0.2, 0.4) 0.3 (0.2, 0.4)
  1. CI, Confidence Interval; NSW, New South Wales;
  2. a Variables above the line-break are highly comparable across the two surveys. Variables below the line-break are moderately comparable but similar across the two surveys
  3. b Weighted by age, sex and remoteness
  4. c Weighted by area health service, probability of selection in the household and the number of residential connections to the house
  5. d The category 'Very Poor' was only available on the NSW Population Health Survey