Table 2.
Associations between the serum level of hsCRP and background factors
| YTI* | ENUH† | PIC‡ | Total | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (n=453) | (n=449) | (n=255) | (n=1,157) | ||||||||
| Characteristics | Low§ | High‖ | Low§ | High‖ | Low§ | High‖ | Low§ | High‖ | |||
| Sex | |||||||||||
| Males | 111 (72.5) | 42 (27.5) | 228 (83.5) | 45 (16.5) | 0 ( 0.0) | 0 ( 0.0) | 339 (79.6) | 87 (20.4) | |||
| Females | 243 (81.0) | 57 (19.0) | 142 (80.7) | 34 (19.3) | 200 (78.4) | 55 (21.6) | 585 (80.0) | 146 (20.0) | |||
| p-value¶ | 0.054 | 0.449 | - | 0.879 | |||||||
| Age (year) | |||||||||||
| 19-29 | 0 ( 0.0) | 0 ( 0.0) | 17 (89.5) | 2 (10.5) | 39 (73.6) | 14 (26.4) | 56 (77.8) | 16 (22.2) | |||
| 30-39 | 5 (100.0) | 0 ( 0.0) | 82 (84.5) | 15 (15.3) | 140 (79.1) | 37 (20.9) | 227 (81.4) | 52 (18.6) | |||
| 40-49 | 29 ( 85.3) | 5 (14.7) | 94 (84.7) | 17 (15.3) | 21 (84.0) | 4 (16.0) | 144 (84.7) | 26 (15.3) | |||
| 50-59 | 97 ( 82.2) | 21 (17.8) | 93 (80.2) | 23 (19.8) | 0 ( 0.0) | 0 ( 0.0) | 190 (81.2) | 44 (18.8) | |||
| 60-69 | 130 ( 76.0) | 41 (24.0) | 63 (78.8) | 17 (21.2) | 0 ( 0.0) | 0 ( 0.0) | 193 (76.9) | 58 (23.1) | |||
| ≧70 | 93 ( 74.4) | 32 (25.6) | 21 (80.8) | 5 (19.2) | 0 ( 0.0) | 0 ( 0.0) | 114 (75.5) | 37 (24.5) | |||
| p-value¶ | 0.371 | 0.793 | 0.575 | 0.255 | |||||||
| BMI (kg/m2) | |||||||||||
| <25 | 249 (84.1) | 47 (15.9) | 302 (84.4) | 56 (15.6) | 0 ( 0.0) | 0 ( 0.0) | 551 (84.3) | 103 (15.8) | |||
| ≧25 | 105 (66.9) | 52 (33.1) | 68 (74.7) | 23 (25.3) | 0 ( 0.0) | 0 ( 0.0) | 173 (69.8) | 75 (30.2) | |||
| Unknown | 0 ( 0.0) | 0 ( 0.0) | 0 ( 0.0) | 0 ( 0.0) | 200 (78.4) | 55 (21.6) | 200 (78.4) | 55 (21.6) | |||
| p-value¶ | <0.001 | 0.044 | - | <0.001 | |||||||
| Smoking | |||||||||||
| Never | 225 (80.4) | 55 (19.6) | 190 (82.6) | 40 (17.4) | 0 ( 0.0) | 0 ( 0.0) | 415 (81.4) | 95 (18.6) | |||
| Former | 73 (75.3) | 24 (24.7) | 103 (81.8) | 23 (18.3) | 0 ( 0.0) | 0 ( 0.0) | 176 (78.9) | 47 (21.1) | |||
| Current | 56 (73.7) | 20 (26.3) | 75 (82.4) | 16 (17.6) | 0 ( 0.0) | 0 ( 0.0) | 131 (78.4) | 36 (21.6) | |||
| Unknown | 0 ( 0.0) | 0 ( 0.0) | 2 (100.0) | 0 ( 0.0) | 200 (78.4) | 55 (21.6) | 202 (78.6) | 55 (21.4) | |||
| p-value¶ | 0.324 | 0.990 | - | 0.589 | |||||||
| Total | 354 (78.1) | 99 (21.9) | 370 (82.4) | 79 (17.6) | 200 (78.4) | 55 (21.6) | 924 (79.8) | 233 (20.1) | |||
YTI*: Yakumo Town Inhabitants, ENUH†: Examinees of Nagoya University Hospital, PIC‡: Patient of Infertility Clinic, Nagoya Unversity Hospital, Low§: hsCRP≦0.1mg/dl, High‖: hsCRP>0.1mg/dl, and p-value¶: Fisher's exact test.
Percentages are shown in parentheses.