Table 1 Bivariate relationships in the two sample datasets
Missing data indicators | Last response | Retention | Dispersion | |||
|---|---|---|---|---|---|---|
Median (percentiles 25–75%) | p | Median (percentiles 25–75%) | p | Median (percentiles 25–75%) | p | |
Norwegian dataset (n = 420) | ||||||
Gender | ||||||
Men (n = 153) | 85 (25–100) | .43 | 30 (10–75) | .016 | 65 (18–88) | 1.0 |
Woman (n = 267) | 90 (35–100) | 50 (20–80) | 50 (22–89) | |||
Parents’ country of origin | ||||||
Both western (n = 368) | 95 (35–100) | .015 | 50 (20–80) | < .001 | 64 (21–90) | .050 |
One or both non-western (n = 52) | 53 (20–100) | 20 (5–44) | 43 (5–78) | |||
Smoking (n = 419) | ||||||
Never/former/sometimes (n = 279) | 100 (35–100) | .005 | 55 (20–83) | .001 | 67 (22–92) | .017 |
Every day (n = 140) | 65 (30–100) | 35 (10–60) | 50 (19–76) | |||
Self–reported health | ||||||
Good/very good (n = 306) | 95 (30–100) | .41 | 40 (15–80) | .84 | 54 (19–88) | .71 |
Not quite good/poor (n = 114) | 78 (34–100) | 45 (20–80) | 51 (26–88) | |||
Neck and shoulder pain last 4 weeks | ||||||
No (0–1) (n = 279) | 95 (30–100) | .73 | 40 (15–80) | .99 | 58 (19–90) | .92 |
Yes (2–12) (n = 141) | 80 (35–100 | 50 (18–75) | 64 (28–85) | |||
Dutch dataset (n = 350) | ||||||
Gender | ||||||
Men (n = 169) | 100 (56–100) | .93 | 56 (33–100) | .25 | 50 (0–100) | .42 |
Woman (n = 267) | 100 (56–100) | 67 (33–100) | 62 (0–100) | |||
Spearman correlations | p | Spearman correlations | p | Spearman correlations | p | |
|---|---|---|---|---|---|---|
Biological age | − 0.140 | .009 | − 0.006 | .92 | − 0.078 | .15 |
Social desirability | − 0.143 | .008 | − 0.088 | .10 | − 0.094 | .08 |
Social inadequacy | − 0.104 | .054 | − 0.082 | .13 | − 0.070 | .19 |
Physical fitness | 0.174 | .001 | 0.051 | .35 | 0.131 | .016 |