Table 1.
The association of any change in serum 25-OH vitamin D concentration with the examined characteristics of the older adults after five years
| Variables | Changes in serum 25-OH vitamin D concentration after five years | P value | |||
|---|---|---|---|---|---|
| No change (n=370) n (%) | Decreased (n=386) n (%) | Increased (n=255) n (%) | |||
| Age group (year) | 60-64 (n=402) | 152 (37.81) | 145 (36.07) | 105 (26.12) | 0.079 |
| 65-69 (n=234) | 75 (32.05) | 89 (38.03) | 70 (29.91) | ||
| 70-74 (n=185) | 66 (35.68) | 70 (37.84) | 49 (26.49) | ||
| 75-79 (n=126) | 55 (43.65) | 50 (39.68) | 21 (16.67) | ||
| 80-84 (n=46) | 16 (34.78) | 25 (54.35) | 5 (10.87) | ||
| 85-99 (n=18) | 6 (33.33) | 7 (38.89) | 5 (27.78) | ||
| Sex | Male (n=569) | 214 (37.61) | 213 (37.43) | 142 (24.96) | 0.744 |
| Female (n=442) | 156 (35.29) | 173 (39.14) | 113 (25.57) | ||
| Marital status | Married (n=876) | 329 (37.55) | 331 (37.79) | 216 (24.66) | 0.253 |
| Single (n=135) | 41 (30.37) | 55 (40.74) | 39 (28.89) | ||
| Body Mass Index (Kg/m2) | <25 (n=294) | 97 (32.99) | 111 (37.76) | 86 (29.25) | 0.175 |
| 25-29.99 (n=456) | 167 (36.62) | 184 (40.35) | 105 (23.03) | ||
| ≥30 (n=261) | 106 (40.61) | 91 (34.87) | 64 (24.52) | ||
| Physical Activity (PASE score) | <150 (n=774) | 284 (36.69) | 304 (39.28) | 186 (24.03) | 0.234 |
| ≥150 (n=237) | 86 (36.29) | 82 (34.60) | 69 (29.11) | ||
| Metabolic syndrome | No (n=275) | 105 (38.18) | 106 (38.55) | 64 (23.27) | 0.656 |
| Yes (n=736) | 265 (36.01) | 280 (38.04) | 191 (25.95) | ||
| Vitamin D supplement administration | No (n=821) | 302 (36.78) | 298 (36.30) | 221 (26.92) | 0.011 |
| Yes (n=190) | 68 (35.79) | 88 (46.32) | 34 (17.89) | ||
| Calcium supplement administration | No (n=809) | 299 (36.96) | 292 (36.09) | 218 (26.95) | 0.009 |
| Yes (n=202) | 71 (35.15) | 94 (46.53) | 37 (18.32) | ||
| Calcitonin intake | No (n=945) | 342 (36.19) | 360 (38.10) | 243 (25.71) | 0.355 |
| Yes (n=66) | 28 (42.43) | 26 (39.39) | 12 (18.18) | ||
P<0.05 was considered statistically significant.