LBP ever, yes vs. no. One-year incidence of LBP, yes vs. no. Female Male female Table 3. Associations between LBP and bi
Posted: Sun Oct 03, 2021 3:33 pm
- Lbp Ever Yes Vs No One Year Incidence Of Lbp Yes Vs No Female Male Female Table 3 Associations Between Lbp And Bi 1 (596.9 KiB) Viewed 132 times
data for the study. Of the 34076 available subjects 29424
participated (completed the survey) in the research. Calculate a
95% confidence interval to estimate the proportion of those
participants who completed the survey. Show all working. (2 marks).
Justify the calculation of a 95% confidence interval for the
proportion of all participants who completed the survey. Show all
the working. (2 mark)
G. Using Table 3, explain why there is no significant
association between increase in birth weight and lifetime
prevalence of low back pain in females but the association is
significantly positive for males. (2marks)
H. Provided that the average weight of the 323
participants in the ‘>3500 gram’ birth weight category is 3681
grams with a standard deviation of 453 grams, calculate a 95%
confidence interval for the average birth weight of all
adolescents. Show all working. (1 mark)
LBP ever, yes vs. no. One-year incidence of LBP, yes vs. no. Female Male female Table 3. Associations between LBP and birth weight, birth length, pon- deral index, gestational age, Apgar/ and Apgar, adjusted for age and stratified for sex (Odds ratio (95%CI), significance indicated with bold typ- ing/ female n-1711 male n=1302 male n=1126 n n n=1494 Weight (gram) S2000 2001-2500 2501-3000 3001-3500 >3500 737 1276 1465 619 113 S16 1023 1494 825 210 1.00 1.00 1.00 1.00 1.23 (1.00-1.55) 1.21 (0.94-1.56) 1.16 (0.94-1.43) 1.16 (0.89-1.52) 1.19 (0.97-1.46) 1.48 (1.16-1.88) 1.13 (0.92-1.40) 1.29 (1.00-1.68) 1.11 (0.84-1.39) 1.66 (1.27-2.16) 0.97 (0.76-1.25) 1.53 (1.16-2.03) 1.33 (0.84-2.10) 1.97 (1.35-2.88) 1.07 (0.67-1.71) 1.85 (1.26-2.71) Length (cm) <45 45-46 47-48 49-50 >50 545 669 1078 1169 691 393 466 902 1227 1028 1.00 1.00 1.00 1.00 1.06 (0.83-1.35) 1.02 (0.75-1.40) 1.18 (0.93-1.52) 0.90 (0.65-1.24) 1.09 (0.87-1.37) 1.16 (0.88-1.53) 1.09 (0.87-1.37) 1.16 (0.88-1.54) 1.06 (0.85-1.32) 1.22 (0.94-1.59) 1.07 (0.85-1.34) 1.10 (0.84-1.44) 1.03 (0.81-1.31) 1.59 (1.22-2.08) 0.99 (0.77-1.26) 1.50 (1.14-1.97) Pond, index (kg/m) <20 >20-22 >22-24 >24-26 > 26 125 343 492 345 162 124 333 540 343 166 1.00 1.00 1.00 1.00 1.22 (0.70-2.12) 1.35 (0.62-2.91) 1.23 (0.70-2.17) 0.85 (0.42-1.73) 1.43 (0.84-2.42) 1.90 (0.92-3.92) 1.24 (0.72-2.15) 1.15 (0.59-2.21) 1.13 (0.65-1.97) 2.12 (1.01-4.48) 1.29 (0.73-2.28) 1.09 (0.55-2.18) 1.55 (0.85-2.85) 1.91 (0.84-4.33) 1.39 (0.74-2.62) 1.35 (0.64-2.88) Gest, age (weeks) 535 36-37 38-39 >40 589 968 871 1488 544 808 1815 1600 1.00 1.00 1.00 1.00 1.23 (0.98-1.54) 1.09 (0.85-1.41) 1.15 (0.92-1.43) 0.93 (0.72-1.21) 0.92 (0.72-1.16) 0.96 (0.74-1.26) 0.95 (0.75-1.20) 0.96 (0.73-1.26) 1.18 (0.96-1.45) 1.31 (1.05-1.64) 1.07 (0.75-1.20) 1.26 (1.00-1.59) 0.96 (0.91-1.02) 1.03 (0.96-1.11) 0.98 (0.92-1.04) 0.97 (0.92-1.07) 0.93 (0.83-1.04) 0.99 (0.85-1.15) 0.95 (0.84-1.07) 0.94 (0.81-1.09) Apgarl Apgar5 1874 1865 1939 1918